Brutal Cathar // Moonrage Brute 007/277

Oracle text

Whenever this creature enters or transforms into Brutal Cathar, exile target creature an opponent controls until this creature leaves the battlefield. Daybound (If a player casts no spells during their own turn, it becomes night next turn.) First strike Ward—Pay 3 life. Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)