Tarrian's Soulcleaver - 264 R LCI

Equipped creature has vigilance.
Whenever another artifact or creature is put into a graveyard from the battlefield, put a +1/+1 counter on equipped creature.
Equip {2}
Tarrian's holy weapon still holds a fragment of his dark power... and his hunger.
rare
Legendary Artifact — Equipment
From the Magic: The Gathering set The Lost Caverns of Ixalan.