Brutal Cathar // Moonrage Brute

When this creature enters the battlefield 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.)