Primordial Reaper

Haste
Whenever Primordial Reaper attacks, reveal the top three cards of your library. If you reveal one creature card, Primordial Reaper gets first strike until end of turn. If you reveal two creature cards, Primordial Reaper gets double strike until end of turn. If you reveal three creature cards, Primordial Reaper gets double strike and lifelink until end of turn.