Spirit derives from Ulster Cycle of Irish myths.
She was known as the "greatest of female warriors". She is described as the rival of Scatach, who trained Aife. Both spirits are sorceresses, shamans, and mistresses of the martial arts.
Some accounts claimed Aife was the twin sister of Scatach. Scathach and Aife became arch-enemies and were constantly at war with one another.
Aife means "beauty" or "radiance".
Assassins aggressively fights alongside its summoner.
Summoning ingredients requires: Leather Bridle