The Necrobinder's skeleton companion. Acts independently, intercepts damage, gains max HP from Summon, and becomes inactive if defeated until revived.

Osty is the Necrobinder's skeleton companion who fights independently and intercepts some damage. The Summon keyword increases Osty's max HP. If Osty is defeated, they become inactive until revived. Keeping Osty's HP high is key to stable Necrobinder play.