Maxtra, Mother Sludge

+1: Create a 1/1 Black Acetous Ooze token with deathtouch
-2: Sacrifice creature you control. Destroy target artifact with casting cost equal to or less than the number of +1/+1 counters on that creature.
-6: You get an emblem that says "When you sacrifice a creature, target creature gets +1/+1 counters equal to that creature's casting cost.