Shadowheart, Cleric of Twilight

Legendary Creature — Human Elf Cleric4/4

Deathtouch Shadowheart, Cleric of Twilight can't be blocked by creatures with power 2 or less. At the beginning of your end step, Shadowheart deals 1 damage to each player. Whenever you lose life during your turn, put a +1/+1 counter on Shadowheart.

Not legal in Commander