Detritivore [Planar Chaos]

Detritivore's power and toughness are each equal to the number of nonbasic land cards in your opponents' graveyards.
Suspends X—{X}{3}{R}. X can't be 0. (Rather than cast this card from your hand, you may pay {X}{3}{R} and exile it with
Whenever a time counter is removed from Detritivore while it's exiled, destroy target nonbasic land.