Base Effect
Upgrade Effect
NecrobinderSkillRare
Sacrifice
Base Effect
Retain. If Osty is alive, he dies and you gain Block equal to double his Max HP.
✦Upgrade Effect
Cost changes from 1 to 0
Strategy
Use this card to smooth early hallway fights, then evaluate whether it still advances your energy curve and scaling plan in elite and boss encounters.
Recommended Synergy
Pair it with draw, cost reduction, and relic support that lets the effect matter on the exact turn you need tempo or setup.