Chen Yakumo, Black Cat of Ill Omen
Primary Class : Rider
Strength : C
Endurance : C
Agility : A+
Magic : A
Luck : A
Shapeshifting : C
Chen can freely shapeshift between human, cat, and nekomata forms.
Magecraft : C++
Chen knows eastern magecraft and can use it to a fair degree. As a Rider she has lost some skill, but maintains her summoning and gap mimicking abilities.
Animal Dialogue : A
Chen can communicate to animals freely. However this doesn't make the animals smarter, or even make them like her. And as a cat negotiations are difficult.
Ride : B-
Chen can possess or mind control almost any living mount, barring a few Divine Beasts and Dragons. She can also control non mounts like humans, weaker youkai, or dogs. She can't control complex machines though.
Noble Phantasm :
Red Oni, Blue Oni : B (Anti Person)
Chen calls up two lesser oni to serve as her weapons. Possessing their bodies, she unleashes them as puppets to her will, using their massive supernatural strength to crush her enemies. While these are low class oni, they're still some of the most powerful youkai in existence.
The Black Cat of Ill Omen is known mostly as Ran's shikigami. Even now after the fox's death and her own ascendancy she's in the shadows of the other Yakumo. Still she's a powerful figure in her own right, and her mastery of youkai control spells makes her feared among the people.
Chen seems young and brash, but she's actually quite intelligent, and uses her spells and possession powers to good effect. She'll rush around getting the proper setup, but then she'll wait calmly to pounce, like a proper cat. And like a cat she doesn't think much of "Masters." She'll work with people who treat her nice, but she'll never be servile.
Alice Margatroid, the Girl of Death
Primary Class : Caster
Strength : D
Endurance : D
Agility : A+
Magic : A+++
Luck : C
Territory Creation : B+
Alice can create an Atelier, a Workshop that specializes in item creation.
Item Creation : B+++
Alice specializes in creating dolls. When focused on doll creation she can even create sentient dolls, given enough resources and time.
Magecraft : A-
Alice is a skilled magician who knows almost every field. However she has personal issues with elemental manipulation, causing a slight weakness in that area.
Protection of the Muse (True) : A
As one chosen by the Grimoire of Alice, she is blessed by the muses of storytelling, acting, poetry, dance, and puppeteering. All skills and magecraft related to those fields are enhanced.
Noble Phantasm :
Little Doll Legion : E
The inexhaustible supply of doll warriors at Alice's command. These smaller dolls can wield weapons, serve as a magic conduit, and explode at a whim. However the dolls are connected to her by her strings, so she can only use them in close proximity. While a weak noble phantasm, it requires no magic from her master, so she can use it whenever she needs to.
Through the Looking Glass : EX (Anti-World)
As the most knowledgeable Alice, she has turned the Grimoire into a weapon of her own. By performing a High Thaumaturgy ritual, she can open a link between the World and the Fantasy within the Grimoire. The area affected starts small, but increases in size as she adds stanzas. Every target within the area of effect is sucked into the story of the Grimoire. A world where "Alice" is the sole heroine.
There is some danger in using this offensively though. Other young girls might become an "Alice." And there are heroes and Noble Phantasms capable of destroying a world. However most will at best be stranded in an alternate realm, with escape being very difficult.
Alice is interesting, in that she's perhaps the most well known Alice, and yet she pales in comparison to her more rowdy companions. Still the Rainbow Colored Puppeteer carved her name into history with her innovative dollcraft techniques, and a willingness to stuff high explosive devices into plush toys.
A hybrid caster, she'll often clash with other Servants behind her doll screen. However she's not very big on conflict, and will often retreat if she's not winning. Similarly she's harsh and judgemental, especially to other Servants and her Master, but reasonable. She'll do her best to crush her foes, in a dazzling display of puppetry.
Youmu Konpaku, Sword of the Netherworld
Primary Class : Saber
Strength : B
Endurance : B
Agility : A+++
Magic : A
Luck : D
Skills :
Mind's Eye (True) : B
Capable of calm analysis of battle conditions even when in danger and deduce an appropriate course of action after considering all possibilities to escape from a predicament.
Mana Burst : B+
Since she has other means of gaining speed, Youmu can freely use her Mana Burst abilities to enhance her blade. Indeed, she can use her sword to fire bullets or transform it into an energy blade at whim.
Protection from Arrows : B
Youmu can parry and reflect any projectile that does not involve True Magic, High Thaumaturgy, or a Noble Phantasm of B rank or higher. Those blows she can't reflect she can often still block or dodge, so long as she sees them coming.
Anti-magic : C
Cancel spells with a chant below two verses. Cannot defend against magecraft on the level of High-Thaumaturgy and Greater Rituals.
2000 Yojina in one slash :
An enhanced form of "God Speed." This is the Konpaku schools secret movement skill. An ability that's similar to teleportation. Supposedly even Sakuya had difficulty dodging it. However, unlike other movement skills, she can only go in a straight line
Noble Phantasm :
Roukanken : B (Anti Person)
The sword that cuts 10 ghosts in a single stroke. Forged by the Ippon-Datura, the blade can, in the hands of a skilled wielder, cut anything. This includes ghosts, phantasms, and spells, not just mortal materials. Even heroic spirits will have to avoid having their noble Phantasms being cut in battle, though other knight class servants should be able to do it if they aren't totally outmatched.
Hakurouken : B (Anti Person)
The sword that slices confusion. While strangely named, the true power of this blade is it's a conceptual weapon as well as a real one. It contains both the concept of cutting in addition to it's edge, and removes any 'confusion' that the target has been cut. This slows healing, and stops any abilities that unmake wounds. It also weakens mental states like Mad Enhancement, Mental Pollution, and things like Battle Continuation based on willpower.
Split Pain : EX (Anti Self)
Youmu merges then separates her human and ghost halves, giving her phantom form a body and making her human form more spiritual. This raises her magic resistance to B, and gives her two bodies to fight with independently.
The second master of the Konpaku fighting arts, and one of the most famous swordswoman of her era, Youmu had a much less impressive start than most master swordsmen. However once she altered her bladework to fit her smaller frame, she rapidly assumed a near invincible reputation with the blade. Even in her old age she managed to draw Sakuya while the maid was using her full power.
The grail will likely summon her at her full power, a relentless Samurai who faces death with a calm eye. She'll use both swords and her speed to attempt to end fights quickly. And she will serve her master loyally, and without question. At least unless they are a complete monster.