Cavalier of Night

Cavalier of Night

Creature - Elemental Knight | Power/Toughness: 4 / 5 (CMC 5)
Lifelink
When Cavalier of Night enters the battlefield, you may sacrifice another creature. When you do, destroy target creature an opponent controls.
When Cavalier of Night dies, return target creature card with mana value 3 or less from your graveyard to the battlefield.