Magical Energy

is a source of energy found naturally within magi and the World, acting as the source to actualize the Mysteries of magecraft.
==Characteristics==
Referred to as the primordial animus and life itself, magical energy is the source that powers all forms of magecraft. Analogous to gasoline, it is an essential element for the invocation of spells. There have been many names for magical energy depending on the culture. 
Magical energy is primarily classified by two types, mana and od, separated only by whether it comes from the atmosphere or from within human magi. They are essentially identical in terms of quality, but the world's mana vastly exceeds humanity's od.
In the Holy Church, it is considered taboo to use the terminology preferred by magi due to the organization’s long-standing conflict with the Mage’s Association. Members of the Church therefore refer to magical energy as "holy energy".Tsukihime -A piece of blue glass moon- - Midnight Rainbow route - Day 10: "Arc en Ciel II"
Caster sucking out Mana (manga).png|Medea sucking out magical energy.
Caster's stolen Mana flowing to the Ryuudou Temple.png|Medea's stolen magical energy flowing to the Ryuudou Temple.
Rin and Archer seeing the mana flow.png|Rin Tohsaka and Archer seeing the stolen magical energy flow.
Gray absorbing Faker's Magical Energy.gif|Gray absorbing Faker's magical energy.
Magical energy can be absorbed from others. In Fuyuki City's Fifth Holy Grail War, Medea absorbed the od of civilians through the leylines to provide herself with an unlimited supply of magical energy. Another example is Gray, who uses the scythe form of her unique Mystic Code, Add, to absorb magical energy.Fate/Grand Order material VII — Gray's Servant Profile, translated by BananaShiki
===Mana===
Leyline.png|A leyline.
Leylineglobe.jpg|Globe showing some of the Earth's leylines.
Seraphix analyzing leylines.jpg|Seraphix analyzing leylines.
, the meaning of which is approximately the same as , is the greater source of magical energy found in the atmosphere of the world. 
Mana is the "breath of the Planet filling the world and nature," produced by the World through a network of across the globe. There also exist alternate versions of leylines, such as the of Olympus, a wireless network created and administrated solely by the Gods, capable of superior mana provision compared to regular leylines.
The density of mana on the planet is dependent on the age. Within the Age of Gods, the mana density is such that a modern human will die when exposed to it without a specialized Mystic Code to block out the mana.Fate/Grand Order - Camelot: The Sacred Round Table Realm - Section 1: Welcomed by the SandFate/Grand Order - Babylonia: The Absolute Frontline in the War Against the Demonic Beasts - Prologue The reason for that is because humanity has adapted to an environment where magical energy is vanishing, and their bodies can no longer withstand their original one now that they parted from the World of Magecraft.Fate/strange Fake Volume 6 - Chapter 18: "As Dream and Reality are Both Illusion I" As such, to people of the modern age, magical energy from the Age of the Gods is basically a poison,Lord El-Melloi II's Case Files Volume 10: case. Grand Roll (Lower) - Chapter 3 Part 2 and too much of it can damage internal organs.Lord El-Melloi II's Case Files Volume 9: case. Grand Roll (Middle) - Chapter 1 Part 2
The mana within a given area is finite, with the three-kilometer cavern housing the Fuyuki Greater Holy Grail holding one thousand units. Similar to magi needing time to regenerate their od, the mana of an area will take a long time to replenish after it is depleted.Fate/stay night - Heaven's Feel route - Day 16: FINAL - Gem Sword Zelretch
Magi freely utilize the mana in the air for the purpose of spells that exceed their personal od, but the amount they can utilize at one time correlates to the capacity of their Magic Circuits. If there is no available mana, they can only utilize small-scale spells with their own storage. It is also possible for magi to interfere with leylines, such as the technique of the Native American tribe of the Protectors of the Land, which consists of having promising newborn's Magic Circuits forcibly linked to the land's leylines through a ritual requiring human sacrifice.Fate/strange Fake Volume 5 - Chapter 14: "Gold and Lions I" This connection can help to strengthen senses,Fate/strange Fake Volume 3 - Chapter 7: Day 1, Afternoon (1) "The Canon of the Demigods" or convert the mana gushing from the leylines into od through one's Magic Circuits.Fate/strange Fake Volume 1 - Chapter 1: "The War Begins" The major drawback of this method is that if the magus physically leaves the land, they will die. Karabo Frampton has been shown to be able to utilize his Black Keys to connect to and activate leylines by placing them at focal points.Lord El-Melloi II Case Files Volume 5: case. Mystic Eyes collection train (Lower) - Chapter 1 Part 3
The Forest of Einnashe directly controls its atmosphere, so magi cannot use the mana from environment. Satsuki Yumizuka's Reality Marble Depletion Garden rapidly depletes the mana in the area, acting as a natural enemy to magi and Elementals. Within the World of Fate/EXTRA, worldwide brings about the end of magecraft, many magi becoming Wizards.
In the Spiritual Tomb of Albion lies the , otherwise known as . It is Britain's leyline cavern.Fate/Grand Order: Cosmos in the Lostbelt - Avalon le Fae: Fae Round Table Domain - Section 7: Fragment 4/Sheffield (II) Magic Circuits are fused with the earth here but cannot be harmed by the excavating magi, and so the excavations avoid them, forming various passages like corridors. This layer is inhabited by Magical Beasts, and the Magic Circuits are said to lead one to the Reverse Side of the World. It is unknown if the Magic Circuits are from the Dragon of Albion, or if they already existed as a part of the earth.Lord El-Melloi II Case Files material
===Od===
, from the concept of , is the energy found within living organisms such as humans, animals and Magical Beasts. Once depleted, the Magic Circuits that are stored in the human soul will begin to replenish it. Od is produced as long as one lives, but the amount a person can store varies from individual to individual.
The difference between mana and od is their abundance. mana can be found almost anywhere and in great quantities, thus it is called the by the magi.Fate/stay night - Day 1: One day - Training (Magic Circuit)Fate/Grand Order - Babylonia: The Absolute Frontline in the War Against the Demonic Beasts - Chapter 4: Hardworking Citizens of Uruk As od is the energy inside humans and animals, it is much smaller in amount and is called the . 
Strictly speaking, mana and od are energy in its raw state, whereas magical energy is the name given to the energy once it is converted by the Magic Circuits. 
Mana can be taken in accordingly with the capacities of the Magic Circuits, but the actual conversion process will take time.
Regarding nature interference magecraft mentioned before, at least for large-scale spells, activation requires the use of mana regardless of the amount of od that the magus has. In fact, it is common practice among the magi to start up their spells with od and then keep them running with mana. Only small-scale spells that do not interact with the environment directly are performed entirely with od, an example of which would be Reinforcement.Fate/stay night - Fate route - Day 7: Sword & Magic (I) - Lectures on magic by Tohsaka-Sensei. What a Magic Crest is.
Magical energy itself does not have any elemental attribute. However, once embedded into an object that does have said attribute (such as jewels) or that is under the influence of Nature Spirits, it will attune itself to the Elements in question until the moment that it is released.
The magical energy itself is held only inside the body fundamentally and if released in the outer world, it will return to the life force and be scattered into the Greater Source. This has also been expressed as "Evaporation." If someone has Magic Circuits and they are still operating, an individual's od will be regenerated even if is totally used up. However, without Magic Circuits, od will no longer be generated at all.
For magi, their own bodies makes for first-rate catalysts.Mahoutsukai no Yoru - Chapter 5-II: "Night of the Witches II" For example, it has always been easy to turn human hair or eyes into raw material useful for magecraft: the purer the eye color, the better, and the longer the hair, the better.Mahoutsukai no Yoru - Chapter 10: "Howling at the Moon" Hair that has been cultivated and maintained over many years becomes an especially powerful and precious fuel and raw material. Long hair can be used for many purposes, like an instant Reinforcement spell, transcribe Magic Formulae, making Familiars,Kagetsu Tohya - Twilight Glass Moon, Fairy Tale Princess - a day - Streets - Evening - Arcueid's room creating a Chain of Submission able to restrain a Phantasmal Species,Mahoutsukai no Yoru - Extra Chapter: "A Honeyed Adventure" and amplifying a Mystic CodeLord El-Melloi II Case Files Volume 4: case. Mystic Eyes collection train (Upper) - Chapter 3 Part 3 among other things. The importance of long hair is especially important for women, who have strong magical power residing in their hair seen as the symbol of their magical powersFate/hollow ataraxia - 10/10 - Emiya's - Because I groom it twice a week and as an extension and "copy" of the female magus. Due to this, they use their hair as a secret weapon and trump card equivalent to Mystic Codes, and ribbons used to tie them are suitable magical artifacts,Fate/stay night - Heaven's Feel route - Day 9: RAIN - Photo as holding the hair in place means holding the magical energy in place. Even if men accumulate magical energy in their hair, it is not as effective as women.Lord El-Melloi II Case Files Volume 7: case. Atlas Contract (Lower) - Epilogue Magical energy is also prone to merge with the fluids (such as blood or semen) of the magus, and these fluids are good at holding in magical energy for some time even after leaving the body. Because of this, by drinking a magus' blood, one can replenish one's magical energy. Magi with monetary problems have also been said to sell their bodily fluids, in which magical energy has been merged, to the Mage's Association.Fate/stay night - Fate route - Day 11: DragonSlay - Boy meets girl & girl And in ancient Egypt, there existed the practice of sewing one's eyelids together to prevent magical energy from escaping the body.Kara no Kyoukai Volume 3: Remaining Sense of Pain (Asagami Fujino) - Remaining Sense of Pain／ 5
 is one of the culturally-specific names of od. Li Shuwen uses qi for his Sphere BoundaryFate/EXTRA material and No Second Strike techniques.
Od is connected not only to a person's physical condition, but also to the characteristics carried by inhuman blood.
The first situation is displayed when, eight years before the start of the story of Tsukihime, Shiki Nanaya's life force was stolen by the inverted SHIKI Tohno.Tsukihime - Far Side: Hisui's Route, 13/Golden Cocoon - 13th day/November 2 (Tue.) In order to keep the child Nanaya alive, Akiha Tohno gave him half of her own life force.Tsukihime - Far Side: Akiha's Route, 11/Telescope - 11th day/October 31 (Sun.) As a result, Shiki developed chronic due to having half the life energy of an ordinary person.
The second occurrence was with Akiha Tohno. Originally, she had less Tohno blood than her brother, as revealed by her father. But because she gave half of her life force to Shiki, the sleeping Tohno blood demon awoke. Under normal circumstances, she would be able to suppress it if she only had to worry about herself, but she carried the burden of two people. Due to this, of all the energy she holds, she only uses half for herself. Shiki equates this to trying to move only with half of his body.
Michael Roa Valdamjong (Remake), in SHIKI Tohno's (Remake) body, wields special Mystic Eyes with properties similar to Shiki Tohno's (Remake) Mystic Eyes of Death Perception which he uses in conjunction with a knife. While Roa believes them to be the same Mystic Eyes of Death Perception the Shiki because of the Lines and Points, they are significantly different. Such eyes allow him to see the "point that makes things live", and interact with them. The Mystic Eyes are limited to directly damaging or annihilating the "life force" of living beings, the "place that indicates the source of life" and the "part that keeps things alive". They do not kill outright by actualizing death, but instead inflict critical damage on someone's life force that leads to their death.
====Known Magical Energy levels====
There is some inconsistency between the various visual novels that make up the Nasuverse. In Fate/stay night, the average amount of od is 25 units of magical energy. However, in Tsukihime, the average amount of od is 40 units of magical energy. 
*Average matured magus: 25 units of magical energy (Fate).
*Average matured magus: 40 units of magical energy (Tsukihime).
*Aoko Aozaki is capable of absurd feats of magecraft using just her od. An approximate comparison would be of a car traveling 1,000 kilometers with only one liter of gasoline.
*Medea’s cost for a bolt of light is around three times Shirou's full capacity, and she can launch over ten at once in multiple volleys.Fate/stay night - Unlimited Blade Works route - Day 6: faker - Archer VS Caster
*Ciel: 100 times the amount of a magus based on an average magus having 40, giving her over 4000.
*Ciel/Remake: Said that if the average magus has 20, she has 5000, giving her 250 times the amount of a magus.
*McDonell Trambelio Elrod: Said to have less than half as much magical energy as Ciel in the Remake at 2000, but has unparalleled magical energy regeneration.
*Medusa’s Pegasus: 100 times the amount of a magus, so about 2500 units of magical energy.
*Rin Tohsaka: 20 times the amount of an average matured magus, so about 500 units of magical energy. Maximum output is about 1000 units of magical energy.
*Artoria Pendragon (with Shirou as Master): 1200~1300 units of magical energy.
**Saber’s consumption (with Shirou as Master):
***Battle with no damage: 10 units of magical energy.Fate/stay night - Heaven's Feel route - Day 4: Avenger - Intruder
***Amount regained per day: 8 units of magical energy.
***Amount needed to maintain her body per day: 6 units of magical energy.
***Amount spent fighting in the first day: 250 units of magical energy.
*Sakura Matou: Normally, she should have about the same amount as Rin, but the Crest Worms in her body are constantly consuming her magical energy. In addition, the shards of the Lesser Holy Grail implanted in her corroded and consumed her Magic Circuits over the years, leaving the Crest Worms as her only way to magecraft.Fate/stay night: Heaven's Feel Manga - Chapter 9: "Day 3 / Demonic Worms" When connected to the Holy Grail and Angra Mainyu, the magical energy inside her body is equivalent to 1,000,000,000,000 units of magical energy, already on the level of a Counter Guardian. However, her maximum output of this magical energy can only equal her original amount, approximately 1000 units of magical energy at a time.
*Shirou Emiya: 25.
**Shirou Emiya’s cost for:
***Reinforcement: 2 units of magical energy.
***Tracing: 5 units of magical energy.
*Waver Velvet: As Waver, he could produce about 20 units of magical energy. At the time he became Lord El-Melloi II, that increased to 70 plus 10 (similar to hidden savings thanks to magical artifacts he possesses and the rituals he uses).
*Tiamat (Femme Fatale): 16,785 units of od (Suppressed). Tiamat releases from her body as much magical energy as a just by screaming. When she powers up, her od value is 11,010,303.Fate/Grand Order - Absolute Demonic Front: Babylonia - Episode 17: "The Congress Dances"Fate/Grand Order - Babylonia: The Absolute Frontline in the War Against the Demonic Beasts - Section 18: Awakening 
**Tiamat (Unleashed): 900,360,230 units of od.
**Tiamat (Draconic Corpus): 18,180,187+ units of od in the Underworld.Fate/Grand Order - Absolute Demonic Front: Babylonia - Episode 19: "Absolute Demonic Front Mesopotamia I"
==Other Forms of Magical Energy==
Aside from life force, whether from the Planet or one's self, there are many other forms that magical energy can take. It can be known as spiritual power, willpower, vitality, survival instinct, in Chinese thinking, in India, , etc.Fate/EXTRA CCC - Chapter 3: The Lip of Love and Hate - Alter Ego / M Some use their force of will, and there are some that use magecraft by paying a price other than themselves. Replenishment of spiritual calories by consuming them as food can also give increased spiritual power to the soul, as can the desire to leave behind descendants, i.e. sexual activities. 
There is also significant increase in land's mana during festivals and holidays, with such charged distortions being a boon to a magus' craft, be it creative or destructive. The emits what the Clock Tower considers the "magical energy of the dead", which consists of the large amounts of mana seeping from the leylines and the od given off unintentionally by the tourists, with the "concept" of the dead at its core.Lord El-Melloi II's Case Files Volume 8: case. Grand Roll (Upper) - Chapter 5 Part 4
===Mana Crystal===
Mana Crystal Battery (FSN).jpeg|Atrum's version.
Mana Crystal Battery (FSF).png|Bazdilot Cordelion's version.
, also known as ,Fate/strange Fake Manga Chapter 20: "The Resolve to Kill" are crystals of magical energy created through human sacrifice. True Archer described them as resembling the mystic crystals used by jewel magi, but seeming several orders of magnitude more pure. 
Known to Greek witches,Fate/stay night [Unlimited Bladeworks] - Episode 14: "Princess of Colchis" a technique to create them was developed by the Galliasta family, using exchange in the form of a "primitive curse" to generate magical energy from human sacrifices, and consisting of a ritual that would take a month and require a transmutation Incantation of a three-day and night duration. Atrum Galliasta modernized and sped up the process, skipping the incantation process entirely, having the sacrifices placed in cylinders, liquefied, and then transferred into a crystal. It is more efficient with "pure" raw materials, so he used young girls as sacrifices. 
This system would later be improved and expanded to a far larger scale by the Scladio Family, able to use dozens of sacrifices simultaneously.Fate/strange Fake Volume 3 - Chapter 9: Day 1, Evening "A Horse Not Yet Pale; Mud Yet Firm"
===Mana Prism===
 are crystals created through concentrating mana.
===Rare Prism===
 are rare crystals created by concentrating mana under special circumstances.
===Quantum Piece===
, abbreviated as QP, are a magical energy resource formed from the spacial magical occupancy value, the quantum of the Thaumaturgical Foundation.Fate/Grand Order: Cosmos in the Lostbelt - Avalon le Fay: Fae Round Table Domain - Section 15: Londonium Defense
Due to the nature of their usage in the gameplay of Fate/Grand Order, QP is treated as the basic form of currency related to Servants, especially in comedic settings.
==References==
vi:Ma Lực
Category:Terminology in Mahoutsukai no Yoru
Category:Terminology in Tsukihime Remake
Category:Terminology in Tsukihime
Category:Magecraft terminology
Category:Terminology in Fate
Category:Metaphysics
Category:Cosmology
Category:Terminology in Kara no Kyoukai