Dredging Claw
From The Brothers' War set
Dredging Claw
Artifact — Equipment
Equipped creature gets +1/+0 and has menace. (It can't be blocked except by two or more creatures.)
Whenever a creature enters from your graveyard, you may attach this Equipment to it.
Equip ( : Attach to target creature you control. Equip only as a sorcery.)