Last thing Twillight's vampires will see and dream about.

Name: Arcueid Brunestud / White Princess of the true ancestors
Origin: Tsukihime
Gender: Female
Classification: True Ancestor (a Counter Force of the planet with a form) / Vampire / Day Walker
Age: At least hundreds of years old
Powers and Abilities: Super strength, speed, durability, immortality (types 1, 3, 4 and 7), during night and at full power doesn't have a concept of death, regeneration (working like a reversion of time; Low-High via powerscaling from Roa who regenerated from his ankles during a full moon, a Low-Godly showing exists but it takes time), can exist as a disembodied soul, can remake her body from nothing, her link with Gaia allows her to siphon unlimited amount of power and makes her virtually unkillable as long as the said link exists, high level resistance to magic and conceptual weapons, non-corporeal as the Archetype Earth (as a Counter Force she's a whirl of formless power), can dematerialize her body and recreate it somewhere else akin to teleportation, her power raises in accordance with the power of her enemy, form of reactive evolution (develops resistance to magic/conceptual weapons used on her), mind control (Mystic Eyes of Enchantment), can create phenomenons via probability manipulation, they range from simple elemental manipulation, to near paradoxes like manipulation of time and warping reality, can reduce her opponent to one-sixth of their power on the moon, minor resistance to causality manipulation
Weaknesses: Uses 70% of her power to hold back bloodlust, can use Marble Phantasm limited amount of times in this state, can't stand garlic, can be KO'd, Archetype Earth power depends on backup from Gaia (although she always get energy it would be only marginally higher than that of her opponent, no more no less, besides being an obvious example of NLF)
Destructive Capacity: Island level via powerscaling (should be at least on par with Berserker), likely moon level via Marble Phantasm, although holding back her bloodlust weakens it immensely | At least small planet level+, likely higher (full powered Arcueid is often described as one of the strongest beings in the Nasuverse, can easily disrupt axis of the Earth to bring various phenomenons including stopping Earth's rotation, exists as a part of the Gaia)
Range: Dozen of meters (her casual claw strikes were sending ripping shockwaves), higher with Marble Phantasm | Planetary
Speed: Massively Hypersonic+ (even with 30% of power she's comparable to Servants) | Massively hypersonic+ can be boosted higher with Ultimate One skill, limited to her opponent's speed+1 up to a certain extent
Durability: At least city level+ (likely higher), immortality makes her virtually impossible to kill without destroying her soul or breaking her link with Gaia, has a strong resistance to most conceptual weapons (including the ones which can strike at spiritual level) | At least continent level+
Lifting Strength: Class 5+ | At least Class P+, likely higher (through influencing axis of Earth she can play pinball with continents)
Striking Strength: Class PJ+ via powerscaling | Class YJ+
Stamina: Nigh-unlimited (she has access to unlimited amounts of power, but she must hold her bloodlust all the time, which can be tiring) | Unlimited
Standard Equipment: none
Intelligence: Expert at killing supernatural beings, air head for everything else
Notable Attacks/Techniques:

Marble Phantasm: Marble Phantasm is the ability to materialize a phantasm, a vision.
It is the ability of an elemental or True Ancestor to connect their will to nature, to interfere on probabilities, and to transfigure the surrounding world at will according to their vision of the world. As the user is part of nature, he can change the world as he wishes, but in the end, what an elemental can act on is only something within the scope of nature. A transformation independent from nature (such as transforming a human) cannot be realized, unless done indirectly (animals can be managed).
In the settings of Tsukihime, the spiritual realm isn't a world separated from the real world, but localized regions thought of by the elemental that creates them; hence it is possible for a human to stray into it.
In the story, when Arcueid uses Marble Phantasm on Roa, she turns layers of the atmosphere in the corridor into a vacuum that cut him like a knife would a radish. Although Roa himself was not affected, there was no way to avoid being chopped in pieces by the atmosphere, and Roa only narrowly managed to remain as just his ankles - Arcueid's imagination didn't go as far as having the floor dislocate.
When not restricted, Arcueid can create a village in the mountains. But where humans have made changes, it will take more time to first break it down.
The Millenium Castle Brunestud in the mountain area that Arcueid lives in is a product of her Marble Phantasm.
The English name comes from a metaphor. When drawing a marble in a bag of black marbles with a 1% chance of drawing the one white marble, Marble Phantasm is the ability to raise that chance to 100% and definitely pick the white one amongst all the black ones; this remains within the laws of the world.
For comparison purpose, following a similar metaphor, a Reality Marble would be, on the other hand, the ability to turn all the marbles into white ones; this is something the world wouldn't naturally allow. While this can be considered to be more efficient, this is, however, the only one effect such a Reality Marble could specialize in.

- Moon Drop: She drops the moon onto the Earth. However, it's a slow way to attack since the timeframe is not given, so at the moment it takes several hours for it to impact the Earth.

- Phantasmamoon: Basically a sailor moon copy with most of her powers (can replicate the Genki dama for the lolz).

- Ultimate One: White Berserker's (Arcueid's) skill.
A skill that brings up one's specs a notch higher than your opponent by receiving backup from the planet. Or it should have, had it not been for her Master, Gatou’s misunderstanding.If it was on Earth or if the opponent were a product of the Earth it’d activate without penalty (NLF), but on the Moon Cell there are restrictions to its duration and it seems that there are beings there of a scale it can’t exceed.

- Blood Sisters 
The Noble Phantasm-like thing that white Berserker uses. It comes from the greatest attack of Waruceid from the Melty Blood fighting game.It's more of a property of hers than a Noble Phantasm.A world configuration where the relationship between the moon and the Earth is utilized.Originating from the brain of the moon and after many years becoming the touch of the Earth, this avatar possesses an Earthly authority while being a copy of the moon.She simultaneously embodies the basic rule of the moon and the basic rule of the Earth, and she can use the discord when both are on the same level as a means of attack.One is the authority of bringing the surrounding environment to her side (the Earth side) – terraforming attraction.The gravity of the moon is only a sixth of the Earth's. That doesn't change in even the cyber world for instance (all information in the Moon Cell is drawn to the mass of the Moon Cell core. This is thought of as being the gravity in cyber space), and everything in the Moon Cell abides by the rules of the Moon.Her body embodies that concept and anything appearing before her, who is on the Earthen side, is reduced to a sixth of its power. However high one's magic resistance is, this is an unavoidable rule of the world'

Notable OBD Victories:

Archer (Fate/Stay Night) - Archer Profile (This was her strongest version, Arche-Type Earth)
Rikudo Sennin (Naruto) - Rikudou Sennin's Profile

Notable OBD Losses:

Aries Shion (Saint Seiya) - Shion Profile
Sol Badguy (Guilty Gear) - Sol Profile

Other:

Archetype Earth,
Archetype Earth, "Look at all the fucks I give" she says.



Arc's appearance in the upcoming Tsukihime remake - she kinda looks like a hooker, yeah.
Arc's appearance in the upcoming Tsukihime remake - she kinda looks like a hooker, yeah.



Key: w/30% of her power | Archetype Earth