Jack Kline (A Dark Heaven and Sweet Hell)

> "*So what are you? The Antichrist or the son of Heylel?*"
> ― Serena to Jack.
>
>

Jack Kline (b. May 18, 2017) is the son of Lucifer and Kelly Kline. He is the first and only known Nephilim to be sired by an Archangel in his universe. He was taken in by the Winchester Family and selected Castiel to act as his surrogate father to teach him about the world and humanity.

Jack plays a role in opening a rift to the Apocalypse World, that causes his biological father and Mary Winchester to be trapped in it. He manages to open a new rift thanks to the aid of the Dreamwalker, Kaia Nieves, and arrives at the Apocalypse World, while leaving a rift open in the Main Universe that leads to the Bad Place. He encounters Mary and is held captive by Michael.

## Personality

Because of his young age, Jack is a curious and naive boy, in the body of a young male adult. Despite his physical appearance, he's living in a world he does not comprehend as he doesn't know what emotions, people. objects, or food mean to him. This makes him a bit somewhat sympathetic towards people, but he does seem to care what happens to them and is guilty if he ever did anything wrong.

Because he grew up too fast, he can be overwhelmed with emotions he cannot understand as he feels no one can understand what is going through his mind or personal issues as he has no one to relate since he is the only one of his kind.

Living in a dangerous world has caused Jack to suffer too much pain and take on the world's problems on his own. He can have low-self-esteem and promotes him to inflicting self-harm onto himself. He can become afraid of what he can do, which is what leads to him holding back, never using his full power as he could lose control and kill people.

He seems more caring towards the supernatural since he believes those trying to live a normal life without killing people or being hunted by hunters can use their gifts for the better good, which motivates him in believing he can do the same by helping the world.

Even though Jack is old, his mind his very young as he can be very gullible into falling for people's lies which Jack did not seem to think twice as to finding it weird on why would someone he hardly knows ask him to fulfill a request of not knowing the ramification of the consequences to come. This also leads to Jack not understanding his choices has consequences as he believes a risk needs to be taken to save people, which many people are to disagree with him.

## Powers and Abilities

* **Mid-Tier Nigh-Omnipotence** - Jack is the child of the second strongest and oldest Archangel in Creation, holding a tremendous extraordinary amount of power to be able to accomplish many unimaginable feats. Even as a baby, Jack showed impressive abilities of being able to grant Castiel a temporarily bolster in his abilities to have his full power from losing his wings and grace slowly failing on him, while having the power to kill the Prince of Hell Dagon with ease. Prior to his labor, Jack accidentally created a rift, a tear in time and space that lead a portal to another alternate universe, the Apocalypse World. After growing into his physical young adult form, Jack displayed further feats such as being able to open a doorway to free the Shedim from their prison, though he was facing difficulties, his powers were still developing and was able to do this when full concentrated. Later on he can kill angels from the apocalypse world with ease, even have thee ability to kill individuals power as an Archangel as he left Alternate Michael, an alternate version of Michael who is stated by Lucifer to be stronger than the main universe Michael in a severe damage state, unable to do much with his weak damaged state then he was able to force Lucifer to speak the truth, bending him to his will if he wanted it. He was powerful for his voice to reach into the Empty and wake Castiel up fro his eternal slumber, a realm that seems impossible to access. At this point of time, Jack is seemingly the strongest entity in existence at full power and can continue to grow stronger by overcoming the basic weaknesses seen by Archangels, Angels, and Nephilims. With his position as the Antichrist, Jack's power is further bolstered to an unimaginable degree. The only beings power to overpower Jack and kill him are God, Original Death, possibly Billie, the Darkness, the Shadow, and Hope Morningstar.
* **Biokinesis** - Jack was able to severely damage Michael by clenching his hands, bringing him down to his knees and unable to fight, a feat that shocked Lucifer.
	+ **Rapid Aging** - After he was given birth and realizing the world was a dangerous place, Jack matured in a physical form that would leave him suitable to challenge any threats towards him by becoming a young male adult.
* **Healing** - From his mother's womb, Jack was able to heal Kelly's wrist and the blood she lost. When he empowered Castiel to fight off Dagon, he healed all injuries Dagon inflicted on the weaken Seraph in a matter of seconds.
* **Immortality (Potentially)** - It is unknown for how long Jack can live but it can be safe to assume he can forever and outlive the average lifespan of humans. During when he was held captive by Michael, Michael claimed Jack will outlive every human he's ever known and will be the only one to remain alive as everyone dies of old age.
	+ **Invulnerability** - As the son of an Archangel, Jack possesses amazing durability and endurance against all forms of weaponry, including a stab from an Angel Blade as they have no affect on him. Bullets don't seem to cause him to flinch, however, strangely if attacked by an unexpected force, he will be easily harmed and lose consciousness. they may have been due to him still growing as his powers have yet to fully developed and he his body hadn't been accustom to tanking much damage, added his human side exploits that flaw. During when he was held captive by Michael in his fortress, he was flicked by the Archangel, while weakened and was able to recover much quickly as a Seraphim like Zachariah, who was unaffected by the wards did not recover from being backhanded by Michael. A suicide Bomb sigil by alternate Kevin Tran was able to harm him as he used his wings to protect Mary from the blast as everything else was killed. A sonic cry from Lucifer did not cause him discomfort as Sam and Dean were hurt, while Castiel felt discomfort.
	+ **Immunity** - Jack's immunity against the weaknesses angels inherit don't seem to have much affect on him as a stab from an angel blade cannot kill him, even when he stabbed himself repeatedly in attempts to kill himself, they were unable to do anything, showing he has the Archangel's immunity towards angel blades. Angel wards don't affect it at all, but heavy wards from Michael's fortress did weaken him, but he was still able to use his weaker abilities and after developing his powers, he began to grow a resistance to even the strongest of wards as not even Lucifer's Cage could possibly contain him as he can "level up" to get stronger. Jack hasn't been tested on being placed inside an angel trap, so its unlikely it can work against him. Though Jack is immune to mental influence, Zachariah was only able to look through his mind due to being weaken by the wards in the fortress.
* **Molecular Combustion** - The time when Jack and Kaia combined their powers, Kaia screamed, causing jack to release a wave of golden energy that obliterated six angels to dust. By using his telekinesis on Zachariah and three angels traveling in mid-air, he easily killed them by turning them into dust.
* **Portal Creation** - As a baby, Jack accidentally opened a rift in space, leading a doorway to the Apocalypse World. During the time he tried opening a rift with the aid of Kaia Nieves, Jack sent everyone into multiple destinations, himself to the Apocalypse World, Kaia to some roadside, and the Winchesters to the Bad Place. Jack's portals seem to be stronger than any spell that can conjure a doorway as his can last numbers of days, while one conjured by the Winchesters could only hold for about 24 hours. Gauging his power, Zachariah sated that Jack can potentially open a rift wide enough for an army to march through, though this has yet to be proven.
* **Portal Closing** - Jack can easily close a rift as he was able to send Lucifer back into the Empty can close the portal leading there.
* **Reality Warping** - Under the trickery guidance of Asmodeus, Jack was able to open a passage for the Shedim to cross through, though at this time he needed full concentration and motivation to pull it off completely as when he got distracted, the Hell Gate closed.
* **Super Strength** - Jack wields enormous levels of physical strength. During the time he was growing in his mother's womb, he was able to retrain Dagon, while he empowered Castiel. He was able to tear a tear a doorknob of a door that was tripled locked without even realizing it himself. In physical combat, he can knock down a Seraphim like Castiel, though Castiel was weaken and almost strangle young man to death.
* **Supernatural Concealment** - Jack can make himself not be found by anyone if he wishes it by subconsciously concealing himself from the detection of Asmodeus, Heaven, or the Winchesters. Jack has great control at keeping individuals from tracking him as his power is very immense.
* **Telekinesis** - Jack is very proficient when it comes to his telekinetic powers as he can send out powerful blast of telekinetic energy that is strong enough to knock out two grown men unconscious. He's shown numerous occasions to send many humans flying during when he was getting a tattoo ward, he accidentally sent the tattoo artist flying, he manage to slow down Buddy to save Sam and deflect a bullet by looking at it. His blast can kill a human as he accidentally emitted a powerful force of telekinetic energy at Dave Mather, who was caught in it by mistake, killing him. He forced one of Kaia's angel captors to forcefully stab himself with his own angel blade. In the apocalypse world, he was able to hold Zachariah in place, then kill him. He was able to stop three incoming angels traveling in mid-air before killing them as well. When he arrived at the bunker after hearing the distress prayer from Sam, he was powerful to send Michael right off his feet without effort.
* **Telepathy** - Jack's telepathic powers can reach out to a location far from Earth such as the empty and wake up Castiel from his eternal slumber. Originally Jack is unable to withstand Angel Radio due to the overwhelming voices of the angels, but after developing his powers, he can listen in on them and hear a person's prayer when Sam sent out a distress prayer in need of his help to stop Michael.
* **Teleportation** - Jack has wings much like an angel, meaning he can travel anywhere on the planet, even the universe stated by Lucifer. Jack can travel inside the bunker without the wards stopping him.
	+ **Apporting** - Jack can carry any number of people he wishes when he travels to a far distance. he can even send a person to a certain location he wishes, something never done before except by a Primordial Entity.

## Weaknesses

* **Angel Radio** - An unexplained phenomenon, the communication system of angels can somehow cause Jack to suffer headaches that can distract him from fighting back. These events have only occurred after his birth, so it may be from him not adjusting to having to listen in on the many voices of angels or his powers were still developing as later one he can fully listen to Angel Radio and hear prayers just fine.
* **Grace Extraction** - Like any angel, Jack's grace can be extracted from him, diminishing his powers, but not completely as he can recharge, however the process is very long as for an Archangel it would take century and with his human side slowing the process, maybe even longer, but not that it would matter as only a few weeks or month, Jack's body will start to shut down, his cells killing each other due to the imbalance of not having his grace keep his angelic and human nature in check, resulting in him dying.
* **Heavy Angel Wards** - It would seem Jack's powers can be affected by powerful angel wards from Michael's fortress and cause him to feel slightly nauseous. though he could still use his weaker abilities on areas that had weaker wards to break himself and Mary free. After a while of development, Jack doesn't appear to be affected by wards those equivalent to Lucifer's Cage as he can break free by "leveling up".
* **Unexpected Mental Trauma** - This could be due to him being part human or just being relatively young but if Jack is hit physically or by an object in the unexpected way, he can be knocked unconscious, but when he does expect it, he is unaffected. This just might be him still developing his powers and not having developed a better endurance to these types of damages.
* **Archangel Blades** - The weapon of an Archangel can potentially harm and kill Jack as Jack is half-Archangel, but if they were to affect him, they would need to be function by an Archangel to use at full power.
* **Primordial Entities** - God, Original Death, the Darkness, and the Shadow can kill Jack easily.
* **Hope Morningstar** - Jack's younger sister is a hybrid cross between a primordial entity and Archangel. Hope has yet to reach her full power, so she's a bit weaker than Jack, but one day she will be stronger than him.