Medusa (heaven version)

Personality: she's still the same old Medusa and she still needs the glasses to stop her from petrifying people but this younger version of her is a less combat oriented and more support oriented warrior class servant
Class: warrior
Hidden abilities: mystic eyes
Heavens warrior (she deals double damage against servants with evil origins)
Grand magic: heaven strike
Rank: B
Weapons: heaven spear

Stheno (warrior version)

Personality: this version of stheno is also a younger version, she's actually stronger than her assassin counterpart but she is slower and makes worse decisions
Hidden Abilities: sister of the snake
Beauty in youth (she has a high chance of immobilizing male servants)
Grand magic: spinning snake bite
Class: warrior
Rank: B
Weapons: snake scythe

Eurayale (assassin version)

Personality: an older version of eurayale her intial dislike from combat has been shed and she is actually a fairly good assassin she still uses a bow like her archer counterpart but that is the only similarity between them.
Class: assassin
Weapons: silent bow
Hidden abilities: sister of the snake
Long shot (her arrows can hit targets miles away)
Grand magic: cobra bite
Rank: A

Scáthach

Personality: the queen of warriors arrives to challenge the opposition, famous for training the Irish hero Cu Chulainn, she is also said to be the guardian of the underworld, some legends even compare her to skadi.
Class: warrior-caster
Hidden abilities: great hero
Divinity
Weapons: various
Rank: EX
Grand magic: underworld pierce

Tamano-no-mae

Personality: tamano-no-Mae, otherwise known as the great concubine, was famous for being the concubine and later wife or a great Japanese damiyo, she quickly became a great strategist and warrior and was believe to be one of the many vessels of Amaterasu, she's kind and wants nothing more than to help those she cares for
Class: caster
Grand magic: Amaterasu
Hidden abilities: Fox wedding (she is more powerful when defending someone she is married to)
The great concubine (she does extra damage agonist male opponents and against women who are married)
Weapons: Amaterasu's scythe
Rank: B

Oda Nobunaga (rose bud)

Personality: this servant is a bit of a weird case it's not really oda Nobunaga, it's a younger version (about 16 we think) who also manifested as a girl for whatever reason, she's sadistic yet sweet (yes we know that'd contradictory) and has a large arsenal of weapons
Class: archer-warrior-caster
Weapons: musket of the damned, flaming katana, dark blade, gun ax
Hidden abilities: great hero
Demon king (queen version) (we don't really know what this does it seems to have some affect on servants who are good but it also has some kind of affect on female servants)
Grand magic: final battle of the demon king: battle in a flaming castle
Rank: EX

Fenrir

Personality: a wolf who's sole purpose was to tear the world to shreds she also manifested as a girl but I guess she could have been one from the start since mythology can get mixed up over time
Class: berserker
Weapons: none
Hidden abilities: ✨sparkling lupine✨ (she maintains her sanity and deals double damage to divine enemies)
Heaven and earth (she is a divine servant but she isn't fully divine so she gets the advantages but not the disadvantages)
Rank: EX
Grand magic: world destroying sparkle bomb