Butchers Bill

Enchant target creature.
Enchanted creature gains +1/+1 and Butcher.
(A creature without Butcher that destroys a
creature with Butcher gains +1/+1 as well
as all cumulative +1/+1 from previous
Butchers. The creature that gained
Butcher is equipped with this card and is
now under the control of the controller of this
card.)