The Loose Cannon

Equipped creature gains +X/+1, where X is the number of Artifacts in your graveyard
When equipped creature is blocked by one or less creature an opponent controls, it gains lifelink and deathtouch until end of turn
When equipped creature is blocked by two or more creatures an opponent controls, it deals double damage, and gains trample until end of turn (its power does not double, but deals two damage per power point)
Equip {2}