Erydis, Memory Cleaver

Lifelink, Trample, Vigilance, Haste, Hexproof, Undying, Menace
When Erydis, Memory Cleaver enters the battlefield or dies, target opponent puts cards from their library into exile until they reveal 5 instant or sorcery cards. They lose 1 life for each card put into exile this way.
At the beginning of the end step, sacrifice Erydis unless you pay 2 life.