Forbidden Foes

Forbidden Foes is the name given to creatures which spawn on the Isle Of Blossoming Joy which can't be easily slain, so are simply sealed away.
Occasionally someone chooses to face a Forbidden Foe in the arena. Eighty-four percent of the time, this ends in the death of the challenger and the re-sealing of the creature.
Evelyn chose to fight not just one but three Forbidden Foes: Cenvarria the Final Dirge, Eternal Hunger, and Hellsblood Battle Fiend.