Wulfgar of Icewind Dale
From Forgotten Realms Commander set
Wulfgar of Icewind Dale
Legendary Creature — Human Barbarian
4/4
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
If a creature you control attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.