Billy of the Tumblers

Double Strike, Haste , Vigilance
Whenever a creature dies, Put X +1,+1 counter
on Billy Of the Tumblers. Where X is the
converted mana cost of the creature.
Remove two +1,+1 counter off of Billy of the
Tumblers and deal 1 damage to any target
Billy is the type of guy to punch first, second, and third before asking the question