Zukk, Eater of Artifacts

Sacrifice X Artifacts: Zukk, Eater of Artifacts
gains X +2/+2 counters.
Other atogs you control gain "Whenever this
creature attacks, destroy target artifact defending
player controls"
At the beginning of each opponents upkeep,
they must pay {4} or sacrifice an artifact and
put a +2/+2 counter on Zukk, Eater of Artifacts