Jack Kline/Abilities and Weaknesses

## Powers and Abilities

### Nephilim Powers

* **Mid Tier Nigh Omnipotence** - As the Nephilim child of the second oldest archangel, Jack is an exceptionally powerful being described by Castiel as having unimaginable power.  After his birth, Jack is considered by Miriam to be capable of performing almost any feat he desires. He was so powerful that he awakened Castiel from his eternal sleep in the void, even though he was not even in the same realm. The angels also considered Jack's power so great that he is able to create more angels. Being begotten by the second oldest archangel and therefore inevitably becoming much more powerful than himself, Jack's power is so great that he has shown the ability to defeat and kill even the archangels effortlessly, as his ease shows in being able to overpower and later kill the alternate Michael , who was the most powerful angel to emerge. This feat is made even more impressive by the fact that Jack was relying on the power of his soul at the time and was weaker than he would have been when he had his grace. Because of his power, most of the weaknesses of the angels that would affect angels, other nephilim and even the archangels have absolutely no effect on him and even in the most extreme cases he still has some resistance to them. During Peace of Mind, Donatello Redfield stated that the now fully endowed Jack could be the most powerful being in the universe. In Moriah , after Jack escaped from the Ma'lak Box , the Winchesters suggested that he was " leveled up " and somehow became even more powerful than he already was to escape from the box. Even powerful Primordial Entities like God have proven fearful of his growing power, with God deciding to ditch even his caring facade to kill him effortlessly while he still could, and Billie confirmed Jack could not only kill God but also the darkness by transforming himself into a bomb that would destroy it. After Jack survived his explosion and became a power vacuum, absorbing the power from Michael and Lucifer's battle, their deaths, and as God fought the brothers, his power was not only restored, but also magnified to a level where he could easily overpower and strip God of his power.
	+ **Astral projection** - Jack was able to project his consciousness into Michael's fortress to find out that it was actually empty. He is also able to show his wings.
	+ **Banishing** - Jack effortlessly managed to banish Lucifer back into the void.
	+ **Biokinesis** - Jack was able to inflict pain on Michael with ease, enough to damage his vessel and bring him to his knees, leaving him severely weakened and unable to fight - an unprecedented feat that shocked even Lucifer. When he killed Nick, Jack broke his fingers by simply clenching his hand.
	+ **Rapid Aging** - Shortly after his birth, Jack accelerated his body's natural aging process to quickly become a young adult.
	+ **Sensory perception** - Jack was able to perceive the true form of angels without any negative effects. This was most evident when he recognized the alternate Michael during their first meeting.
	+ **Clairsentience** - During the experiment to open a rift to the world of the apocalypse, Jack was able to sense the alternate realities. He was also able to recognize who Michael was when he first saw him. When he was in heaven, Jack realized that something was wrong and missing. Naomi explained that he was able to recognize this because of his angelic heritage. After regaining his powers, Jack could sense that the syringe Nick had used on Donatello had previously been filled with angelic grace. Even when he was powerless, Jack could sense another presence, something beside him and the Winchesters that was still in the world after God had wiped them all out.
	+ **Conversion** - As seen in Jack in the Box, Jack can transform human souls into angels.
	+ **Conjuration**- In Jack in the Box, Jack could make worms appear in the body of a priest.
	+ **Electrokinesis** - Jack's work caused a blackout. In his normal state, he is also able to affect machines and electricity, such as lamps and a vending machine. When he is scared, he can also mess up the electricity. He was able to turn off the engine of the Impala.
	+ **Healing** - While still in the womb, Jack was able to heal Kelly Kline's slashed wrists and her massive blood loss. While strengthening Castiel, he also healed the Angel's injuries from the battle with Dagon in seconds. Jack was later able to heal Stacy after accidentally stabbing her with an angel blade. He later healed Sam's severe head injury after Nick hit him on the head with a rock.
	+ **Illusion** - To entertain some children, Jack was able to alter the shadow puppets he made to look like he wanted them to.
	+ **Localization**- Jack was able to locate Lucifer and Castiel at the camp. He was also able to locate Sam's whereabouts in the Men of Letters bunker when he prayed to him.
	+ **Molecular Combustion** - When Jack and Kaia combined their powers to open a rift to an alternate reality, Kaia's screams caused the rift Jack opened to emit a yellow glow that turned six nearby angels to dust. After using telekinesis to lift Zachariah into the air, Jack was able to detonate Zachariah simply by clenching his fist. Sending similar pulses of energy to his telekinesis into the air, Jack caused three more angels to explode in midair. In a moment of anger, Jack accidentally used this power to obliterate Mary Winchester, leaving an angelic blast site and no corpse. Duma explained that her death was instantaneous and painless.
	+ **Photokinesis** - When Jack was born, he emitted a yellow beam of light that briefly knocked a nearby Mary Winchester unconscious.
	+ **Portal Creation** - Jack's birth was able to open a rift into an alternate reality. Jack later experimented in attempting to open a door to rescue Mary from the alternate reality but determined that while he could feel around, he needed a dreamwalker in order to be able to see the realm. When combining his powers with Kaia like this, due to her flashing between Mary and the Bad Place, Jack transported everyone to three different locations: Kaia to a roadside, himself to Mary and the Winchesters to the Bad Place. This effort also opened a rift to the Bad Place though not to Apocalypse World. The rift Jack opened to the Bad Place was also strong enough to last for a number of days while a rift opened by the ritual from the Demon Tablet only lasts for twenty four hours. Zachariah said Jack is strong enough to open a portal big enough to march an army through. When opening a rift to the Bad Place following his second resurrection, Jack is able to do it simply by extending his hand and concentrating, not requiring the help of Dark Kaia and her dreamwalking powers. However, he had dreamwalked through Dark Kaia to the Bad Place a short time before and so may have not needed the extended connection to open the rift.
	+ **Power Granting** - From the womb, Jack was able to temporarily empower Castiel to the point that he was able to overpower and kill the Prince of Hell Dagon.
	+ **Invulnerability**- Jack was able to protect Mary from the suicide bomb spell of Kevin Tran using his wings.
	+ **Pyrokinesis** - Jack burned Nick to death from the inside, leaving the outside of his body scorched.
	+ **Thermokinesis** - After Jack was born, his footprints scorched the parts of the floor of Kelly's cabin he had walked on. When he and Kaia open a rift together to the Bad Place, the wave of energy Kaia's screams released from the rift Jack was opening was able to heat up the angel blades of six nearby angels to the point that they became half melted into the floor. He was later able to heat up the bars in the warded window of a cell in Michael's fortress to the point that they melted.
	+ **Reality Warping** - Under the guidance of a disguised Asmodeus, Jack was able to open a Hell Gate to an almost inaccessible section of Hell to release the Shedim. However, doing this required Jack's full concentration and when his concentration broke, the Hell Gate closed. He also managed to remove blood stains from his shirt by simply waving his hand over them. In Game Night Jack managed to effortlessly close the portal to The Empty.
	+ **Resurrection** - At the same time he healed his mother's injuries, he resurrected her. However, Miriam indicated that, despite his vast power, Jack is not powerful enough to resurrect Castiel as he is "all the way dead". Jack has never displayed this power on his own outside of the womb, relying on Lucifer to resurrect Maggie and trying to use a spell to resurrect Mary Winchester.
	+ **Salt Transmutation** - Jack was able to transform a human into a pile of salt.
	+ **Soul Manipulation** - The raw energy of Jack's soul fully magnified was capable of vaporizing multiple hellhounds into oblivion.
	+ **Spell Casting** - Jack has the ability to cast powerful spells such as the Necromantiorum from the Book of the Damned. However, the spell failed to work as Jack lacked Mary Winchester's body.
	+ **Terrakinesis** - When Jack got angry at Asmodeus for harming the Winchesters and Donatello, his anger caused the ground to shake for a moment. In Jack in the Box, Jack was able to open and close earth underneath a woman accused of being a fake health healer to swallow her up. While trying to break out of the Ma'lak Box, Jack caused the box and the bunker to shake violently.
	+ **Telekinesis** - Jack was able to send out powerful blasts of telekinetic energy strong enough to knock two people unconscious at once. When Jack did this, visible waves of energy emanated out of him. In a moment of pain, Jack accidentally threw a tattoo artist across a room. This happened without the visible waves of energy, indicating that Jack can use both forms of telekinesis. In order to save Sam's life, Jack blasted Buddy across a room with a telekinetic blast emanating from his hand while deflecting a bullet just by looking at it. Following this, Jack gained control of his telekinesis, using it to levitate a pencil and creating a small shockwave to knock Sam, Dean, and Castiel to the ground. However, when Jack attempted to use it to help against Dave Mather, he accidentally caught a security guard in the blast as well and killed him. When Jack uses his ability to produce a blast or shock wave his eyes glow gold but not when he used it in a more controlled manner like when he lifted the pencil. When confronted by two hostile angels, Jack was able to hit one with a telekinetic blast so hard she went flying through a glass window and then a brick wall. He was also able to force another angel to stab himself with his own angel blade, and later when using his telekinesis on Zachariah, lifted him into the air and showed the ability to in inflict immense pain on him. Jack's telekinesis is so powerful that he was able to blast the archangel Michael right off his feet, and did so without any visible effort. After his powers were restored, Jack was able to twirl an angel blade through the air with ease, but his carelessness caused him to accidentally stab Stacy with it. After Lucifer emerged from the Empty, Jack flung him back through the portal with just a wave of his hand.
	+ **Telepathy** - Jack showed the ability to telepathically call out to Castiel who could hear Jack even in the Empty. Even the Shadow was surprised how could something wake Castiel in his domain. Later, by touching his hands to Derek Swan's head, Jack was able to see everything that Derek saw with his powers. However, using this power on Derek caused the veins in his face to glow. Jack later used this ability, in the same way, to show the Winchesters and Kaia Nieves what Derek had seen of the alternate universe and their mother. After telepathically connecting to Kaia, who was dream walking at the time, Jack displayed a level of control over her vision, as he guided her from the Bad Place to Apocalypse World. He is so powerful that only a sufficiently powerful dreamwalker can hold this connection with him as the only known dreamwalker capable of holding this connection is Kaia, while Derek visibly struggled to and could not hold the connection for very long, making Jack have to break the connection in order to avoid seriously hurting him. Jack also has the ability to hear "angel radio" which causes him debilitating pain for unknown reasons. Additionally, when Sam prayed to him, Jack was able to hear Sam's prayers like an angel would have. In order to find out about Kaia's state, Jack used this to tap into Dark Kaia's mind and see Kaia through their connection. The Winchesters later state that Jack dreamwalked through Dark Kaia when he did this.
	+ **Sedation** - Like an angel, Jack can put a person to sleep with just a touch.
	+ **Precognition** - Jack, from the womb was able to see a vision of the confrontation between Castiel and Dagon at the Heavenly Portal, which he was able to share with Kelly.
	+ **Mind Control** - Jack was able to make Lucifer tell him the truth against his own will. By simply saying "stop lying", Jack was able to make the entire planet tell the truth against their will.
	+ **Empathy** - Jack was able to sense the pain of Sylvia in Gimme Shelter while confronting her.
	+ **Teleportation** - Jack displayed the ability to teleport after being upset by a conversation and wanting to be away from it. He was later able to use this ability to leave the Men of Letters bunker on purpose. When he teleports, Jack is shown to have the sound of wings flapping like an angel. Lucifer said he and Jack can go anywhere in the Universe.
	+ **Apporting** - By putting his hand on Rowena he managed to send her back to her flat and telekinetically fling her against her desk without being there, a feat that has never been seen before. In Jack in the Box Jack managed to effortlessly teleport fifteen people to heaven with ease.
	+ **Super Stamina** - Jack once stated that he does not sleep a lot, but unlike an Angel, he still requires sleep. Lucifer once attempted to get Jack to go to space with him in an attempt to keep his deal with Michael from getting exposed; implying that Jack may not need oxygen.
	+ **Super Strength** - Jack wields enormous levels of superhuman strength that is clearly far above any Nephilim before him. While empowering Castiel, Jack enhanced his strength to the point of effortlessly restraining Dagon one-handed. After being born, Jack displayed sufficient strength to easily rip off the doorknob of a door that was triple-locked without even realizing it. In physical combat, Jack has been shown to effortlessly throw opponents around, and at one point he effortlessly knocked Castiel, a powerful Seraphim, to the floor with enough force to incapacitate him for a few moments and almost strangled a young man to death in less than a minute with one hand while enraged. Even while suppressing his powers to hide from God, Jack was still able to overpower a Grigori whom he took by surprise, as well as to rip out his heart, though another Grigori, who was prepared for him, was able to overpower him.
	+ **Supernatural Concealment** - When Jack does not want to be found, his powers are subconsciously concealing him from other beings which was shown by the fact that Asmodeus, Lucifer and everyone else who were looking for him were incapable of tracking his whereabouts. A demon stated that Hell had exhausted all its resources in an attempt to find him. This is notable considering how his immense power usually makes him very easy to locate. God was able to easily locate Jack in order to send Dean to kill him. Later on, Jack had to stay hidden in The Empty in order for God not to locate him.
	+ **Life Force Draining** - Jack is capable of draining a being of their life force. At the request of Castiel, Jack was able to draw most of the Seraphim's life force out of him by placing his hand on Castiel's head and concentrating, though Jack funneled the life force into a flask so that he could restore it later.
	+ **Immortality** - When Jack was dying after losing his grace, he claimed he would have lived forever if he still had it. Alternate Michael came to the same conclusion, claiming that Jack would "know time that makes mountains, that wipes out species" alongside Michael. Castiel also stated in time that he and Jack will have to watch the Winchesters die as they continue to live on.
	+ **Nigh-Invulnerability** - As the Nephilim Spawn of the second strongest archangel in creation, Jack possesses complete invulnerability to almost any harm. Unlike the other Nephilim, Jack is completely invulnerable against an angel blade as being stabbed in the heart with one by Miriam had no effect on him. Jack had stabbed himself in the chest several times with a butcher knife and did not die while such damage would kill any ordinary human. However, Jack can still feel pain, as shown when he flinched and reflexively threw a tattoo artist because of the pain from the needle, and can also be knocked out and injured by blunt force trauma to the head as any ordinary human, albeit this is usually when he is caught off guard or already in a state of shock. After he was flicked across a room by Michael, even while his powers were significantly weakened he was shown to recover quicker than any regular human would have. Even Zachariah, a powerful angel whose powers weren't affected by the warding was unable to recover as quickly as he did. The Suicide Bomb Sigil Kevin Tran used also had no effect on him whereas everyone else in the room were killed, besides Mary Winchester who Jack protected from the spell with his wings. Additionally, when shot twice by Dean to get his attention, Jack suffered no visible harm and was shocked more than anything by the action and later, when met with a sonic scream from an enraged Lucifer, while it made Sam and Dean cover their ears in pain and the Seraph Castiel feel discomfort, Jack was completely unaffected. While suppressing his powers to hide from God, Jack is more vulnerable at suffering injuries from an angel sword and cuts from a razor. However, even in this state, Jack stated that his captor couldn't kill him which the Grigori acknowledged. However, God was capable of easily killing Jack with just a snap of his finger and the equalizer, a gun created by God and which has the ability to harm God, was made specifically to kill Jack. After absorbing the power emitted from Michael fighting Lucifer and killing him and God killing Michael and beating Sam and Dean, however, Jack became completely unaffected by God's power, unfazed when God tried to smite him.
	+ **Immunity** - Despite his angelic heritage, Jack is immune to angel banishing sigil, a weakness that even Lucifer was affected by. However, the sigils do have an unseen effect on him, causing him pain and making golden marks appear briefly on his veins. He is also immune to most angel warding though being inside a building with very powerful warding can dampen his abilities, as seen when he was in Michael's fortress, he could do nothing with his powers. However, he was capable of thermokinetically melting the bars in the window of Michael's fortress due to the warding being somewhat weaker there. Jack also displayed an immunity to a Ma'lak Box, a specially warded coffin designed to contain anything for eternity, even an archangel. After absorbing enough power from Michael, Lucifer and God, Jack became immune to God's attempts to smite him, which left the former in shock.
	+ **Regeneration** - He was able to easily remove an angel blade from his chest and the wound quickly healed in seconds. After getting two tattoos, both healed in seconds to the point that there was no sign that they had ever existed. After Jack stabbed himself several times in the chest with a butcher knife, his wounds healed in mere moments.
	+ **Inherent Omniscience (possibly)** - According to Asmodeus, Jack is full of timeless knowledge. Even before he was born, Jack was already able to comprehend his pregnant mother's suicide attempt and use his powers to resurrect her, as well understand and remember some conversations that Castiel had with Kelly Kline while Jack was still in her uterus. Moments after he was born, Jack already had some basic knowledge like how to talk, walk, use some of his powers (like how he used his powers to grow up fast), etc. However, from that point forward, he only exhibited human-like awareness. Despite this, however, it seems that he does have some inherent omniscience that he cannot access directly yet, as his conscience, manifested as Lucifer, was aware of things that Jack refused to acknowledge to be true, as it knew that Jack's resurrection spell won't work and that he can't feel anything anymore, both which proved to be right. Likewise the manifestation of Jack's subconcious easily recognized that Sam and Dean were planning to trap him in the Ma'lak Box and never wanted to let him out and that they were also lying about coming up with a way to fix him.
	+ **Absorption** - After Jack survived the explosion when he became a "metaphysical supernova" he was turned into sort of a power vacuum. He gained the ability to passively absorb any energy that comes into contact with him, even the life energy from plants. While Lucifer and Michael were fighting Jack had been absorbing the energy that came off from them, including the energies released from the two archangels deaths. When he absorbed enough power he became unstoppable, immune to even God’s attempts to smite him. Once he gained enough power, he was able to extract and absorb God's power and make it his own, rendering God permanently powerless.

### Powers by Absobing God and by Merging Darkness

* **Nigh Omnipotence**: After Jack absorbed the powers of God and merged with the darkness, he is more powerful than all beings including the primordial beings like God and the darkness. He has, for example, revived all living beings in the multiverse, except for a few beings, torn down the walls of heaven, etc.
	+ **Angel/Demon Exorcism** - Jack can exorcise any angel or demon verbally or with a hand gesture.
	+ **Electrokinesis** - Jack is able to fire extremely powerful lightning bolts that burned even Archangel severely.
	+ **Healing** - Jack is able to heal any being, any damage.
	+ **Resurrection** - Jack is able to resurrect any being no matter how many this was shown when he resurrected almost all of creation (those killed by God).
	+ **Memory Manipulation** - Jack is manipulating the minds of others.
	+ **Weather Manipulation** - Jack is able to manipulate the weather in the multiverse on a cosmic scale.
	+ **Empathy** - Jack is able to feel and manipulate emotions.
	+ **Shapeshifting** - Jack is able to take any shape he wants, but he actually always keeps the shape he has had since birth.
	+ **Soul Control** - Jack is able to control any soul. Although Jack is not the creator, he has the powers of Absorbed and therefore can.
	+ **Smiting** - Since he has absorbed all the powers of God and additionally has Amara powers, he is able to smite any being except other primordial beings, which is done either verbally or by a hand movement.
	+ **Invisibility** - Jack only becomes visible when he wants to.
	+ **Umbrakinesis** - Since Jack merged with darkness he is able to summon and control clouds of darkness. He could use this to create tentacles of darkness.
	+ **Obligatory existence** - Since Jack is a primordial being of light and darkness, it is very harmful to creation and is slowly dying out.
	+ **Nigh Omniscience** - He had the complete knowledge of two primordial beings in addition to his.

### Human Abilities

* **Proficient Hunting Skills** - Jack has learned a level of hunting skills from his time with the Winchesters, an example being that he has learned how to research for cases which he stated was from watching them do it themselves. Before the events of *The Bad Place*, he was able to research lore to learn about dreamwalkers and their ability to see into other realities, which is notable what with the lore on Dreamwalkers being inconsistent. He has proven to be an asset on hunts in *The Big Empty*, *Tombstone* and *Let the Good Times Roll*, finding a vital clue to the ghoul's identity in *Tombstone* without even relying on his powers. After Jack saves Lora without his powers, Castiel states that he has the mind and heart of a hunter even if he doesn't have the skills yet. Working with Dean, they were both able to successfully kill the zombie Vance together, but were not able to capture the necromancer Harper Sayles. After months of training by the Winchesters and Castiel, Jack became a proficient hunter in his own right even without his powers, catching the Gorgon Noah Ophis by surprise and killing him with a machete. After his resurrection, Jack went about hunting the remaining Grigori. He easily killed most of them before being captured by the last one. In *Gimme Shelter*, Jack and Castiel made an effective hunting team even without the presence of the Winchesters, although Jack makes the mistake of showing his FBI badge upside down.
* **Skilled Hand-to-Hand Combatant** - Alternate Bobby Singer taught Jack some basic boxing techniques. He was also able to tackle Garth off of Sam and restrain him for a time. However he lacks proper training like Sam and Dean and similar to Crowley, mainly uses his powers to give him the edge in a fight.
* **Intelligence** - Despite having quite a naïve personality, Jack has proven himself to be very intelligent on occasions. When a group of angels were pursuing him the Winchesters into the Sunstar Line cargo ship, Jack predicted that the angels would use angel radio on him as soon as they got to him, due to angels using it on him before. He easily figured out how the witch, Broomhilda's magic was killing Lora, something even Castiel and Jules couldn't uncover though Lora had told him the story of her captivity and not Castiel and Jules. He has been able to figure things out not only through intellectual perception but also emotional perception as well. When killing Michael, he was smart enough to absorb his grace to restore his own powers and save his own life.
	+ **Intuition** - Jack has shown himself to be quite intuitive. From the womb, he was able to instinctively tell that Castiel could be trusted after feeling him touch Jack's kicks. Jack even stated that he remembers feeling safe at that very time.
	+ **Manipulation** - He was able to successfully manipulate Harper Sayles' zombie boyfriend Vance into believing he wanted to be with her, so that Vance would get jealous and come out so Dean could bind him. He also managed to goad Dean and Castiel, who have both had experience with people manipulating them over the years, into believing that his condition was just a regular cough for some time, with Dean only finding out the truth when Jack bled and collapsed in front of him.
* **Adaptability** - Jack has shown himself to be highly adaptable to certain situations.
* **Enochian Magic** - With the loss of his grace, Jack's Nephilim body fell out of balance between his angel and human halves and started to deteriorate and eventually caused him to die. With the help of Castiel placing his soul back into his body from Heaven and the ritual taught to him by Lily Sunder, Jack was able to use Enochian magic to harness a small part of his soul to stabilize his condition to stay alive. With Enochian magic he was able to use a part of his soul to use his previous powers, but burned off pieces of his soul in the process each time. When killing Michael using this magic, Jack burned off his entire soul.
	+ **Angelic Exorcism** - Jack was able to pull Alternate Michael from Rowena's body.
	+ **Energy Blasts** - Jack was able to emit powerful blasts of energy able to knock Michael off of his feet.
	+ **Healing** - After Castiel was poisoned by Gorgon venom, Jack used the power of his soul to heal him when the anti-venom didn't work.
	+ **Invulnerability** - When Jack was blasted by Michael, he was knocked down at first but later withstood it like it was nothing.
	+ **Molecular Combustion** - When the Men of Letters bunker was attacked by a group of monsters, Jack was able to disintegrate them all at once, burning away another piece of his soul in the process.
	+ **Pyrokinesis** - After exorcising Michael from his vessel, Jack was able to burn away his true form, leaving only Michael's grace behind for Jack to consume.
	+ **Regeneration** - After being resurrected, Jack used the Enochian magic to heal the condition that had killed him in the first place. After his condition reoccurred, Jack used the magic to heal himself again.

## Weaknesses

* **Angel Radio (formerly)** - Hearing the angels communicate over "angel radio" causes Jack debilitating pain for unknown reasons. However this only occurred shortly after his birth while his powers were not properly developed yet.
* **Archangel Blades (formerly)** An archangel blade is capable of harming Jack as seen when Lucifer cut Jack's throat and took his Grace. Mrs. Butters seemed to think that an archangel blade, even wielded by a regular human such as Dean, was capable of killing him, but this is unconfirmed.
* **Grace Extraction (formerly)** - Before Jack's birth, Sam theorized that extracting his grace would leave him powerless and thus not a threat. In Let the Good Times Roll, Lucifer extracted most of Jack's grace with an archangel blade, leaving him completely powerless. Although it was revealed in Stranger in a Strange Land that Jack's Grace will slowly recharge, as of now, Jack has not regained any of his powers. In Unhuman Nature, its revealed that his grace is what holds his human and angel halves in balance and, when he lost it, his two halves come in conflict with each other, causing Jack's body to shut down progressively. The only way to revert that is for the Nephilim to recharge their grace. Even when given Archangel grace from his uncle, Jack's body did not accept it and his condition only worsen.
* **Ma'lak Box (formerly)** - The Ma'lak Box was able to briefly contain Jack's powers, however he was able to explode the box and the surroundings with ease when he really tried.
* **Resurrecting Angel Ritual (formerly/temporarily)** - Making the ritual using Jack's blood made him feel great pain, but after asking Mary permission to use his powers he showed no pain even within the presence of the ritual.

* **Unexpected Mechanical Trauma (formerly)**- While Jack has the superhuman endurance to shrug off bullets and knife wounds, Jack can be knocked unconscious or temporarily stunned with pain by physical forces when he is caught off-guard (or already in a state of shock). Sam had once knocked Jack unconscious by unexpectedly electrocuting him in the back with a taser in Lost & Found. Again in The Big Empty, the shapeshifter Buddy was able to knock Jack unconscious by hitting him in the head with a fireplace poker after catching him off guard. It should be noted that these occured before Jack developed his powers.

* **Very Heavy Angel Warding (formerly)**- Jack's powers were severely weakened by the powerful warding in Michael's fortress, leaving him vulnerable to the powers of Michael and Zachariah. The warding was so much that when Jack attempted to use even some of his more easily controlled powers, he could do nothing. In a spot where the warding was weak, Jack was capable of using a weaker ability to melt metal bars. In Jack in the Box despite Jack's powers being weakened he managed to break out of the Ma'lak Box with ease.
* **Witchcraft (formerly)**- While Rowena had contemplated fighting back against Jack using her magic, indicating that magic does have an effect on him, she admitted that she would not win a fight with him, indicating that although powerful magic could affect him, they do not have the ability to do any significant resistance. Using a potion made from Yarrow root and ground jaw bone in Jack's smoothies administered over time, Mrs. Butters was able to greatly weaken his abilities.
* **Mortality (formerly)** - After having his grace extracted, Jack has become completely mortal and vulnerable to injury. A beating from Lucifer left his face heavily bruised and bleeding while stabbing himself in a suicide attempt caused Jack to bleed heavily before he was stopped. In Stranger in a Strange Land, Jack is stated to be as vulnerable as any human with his powers still having not returned. As seen in The Scar, he is now susceptible to sickness as he is suffering from an unknown illness and coughing up large amounts of blood. In Optimism things became much worse as after finishing a hunt he coughed up more blood and proceeded to bleed from his nose and collapse. It was later revealed in Unhuman Nature that this illness is the result of Jack's lack of grace, as his cells are attacking each other, causing his body to gradually break down without his grace, due to his human and angel halves needing to be stabilized by his grace. Though this was stabilized using Enochian magic and Jack's soul, it appeared to reoccur briefly later on. However, in Ouroboros, after absorbing Alternate Michael's grace and regaining his full Nephilim status, Jack regained his full capability of powers, including his original semi-immortality and invulnerability to harm.
* **Death Scythe** - The Death Scythe of Death could kill Jack but since there is currently no Reaper and Death also killed Betty (Death from the end of season 15) this weakness does not work.
* **The Equalizer (maybe)** - Since God it could hurt him, Jack could work on him but don't know if it works on one has the durability of an Arch Nephlim and two Primal Beings.
* **Leaving the darkness** - When the darkness leaves the body again Jack doesn't have the powers from the darkness anymore.