Frankenstein

Class: berserker
Master: leon leo
Personality: she is shy but sweet and does not like people calling her Frankenstein she prefers to be called berserker
Weaponry: electric mace, lighting charging horn blaster
Hidden abilities: endless fighting (she can keep fighting endlessly because instead of getting magic power from her master she gets it from the environment around her)
Grand revival (when she uses her grand magic it can bring somebody who is dead and nearby back to life)
Grand magic: lightning  tree of destruction and rebirth
Servant rank: A

Semirami

Class: caster-assassin
Rank: EX
Personality: she's is quite possible the most powerful servant ever her weapon which doubles as her grand magic is the hanging gardens of Babylon which is a floating attack fortress that Annie remarked that her grand finale and Arthur's Excalibur couldn't take down when the garden was at full power
Weapon: vroom broom, thorns of pain, hanging gardens of Babylon
Grand magic: hanging gardens of Babylon
Hidden abilities: age of the gods (she was alive during the age of the gods and because of this her magic is more powerful the most servants)
Independent action (similar to Frankenstein she can absorb SOME power from the environment around her she still has to take some form her master but can lessen the burden)

Annie Oakley (ruler form)

Master: Athena (Yokie_Games )
Personality: as the only servant to come back from the alter war she has been changed into a ruler class and is now even more powerful
Rank: EX
weapons: same
Hidden abilities: gods good graces (she is a lot harder to kill now and has immunity to just about everything that would be a status effect)
All the deaths (she has inherited the grand Magic's of all the dead servants from the alter wars)
Grand Magic's: seven commandments (gunswoman edition), exploding tower of Babylon, grand finale, tell it till it ends, the way the story ended, yew tree growth, forest calamity