Grafted Wargear | Magic: The Gathering
Formats Grafted Wargear is Legal in
Official Oracle Text for Grafted Wargear
Whenever Grafted Wargear becomes unattached from a permanent, sacrifice that permanent.
Equip (: Attach to target creature you control. Equip only as a sorcery.)
Official Rulings for Grafted Wargear
12/1/2004 : Note that if (e) happens, the creature won't be on the battlefield to be sacrificed. In all cases, it's the creature that was equipped when the ability triggered that will be sacrificed.
12/1/2004 : If your Grafted Wargear somehow ends up on an opponent's creature and it then becomes unattached from that creature, you won't be able to sacrifice that creature because you don't control it.
4/15/2013 : You may activate this card's equip ability targeting the creature that it is currently attached to, even if it's the only creature you control. Since the equip ability costs zero, you can do this as many times as you like during your main phases, though it generally won't do anything.