Once the noble spirit of Arturia Pendragon, Saber’s soul was later corrupted in Fate/Stay Night’s installment, Fate/Hollow Ataraxia. Dark Saber is actually more powerful, but she is slightly less agile.
Sadly, the only way her soul could be cleansed is for her Master to kill her… but you all knew that already, right?
Beautiful cosplay! She makes an excellent rival for Calssara. Which do you like best?