detritivore's power and toughness are each equal to the number of nonbasic land cards in your opponents' graveyards.

suspend x—x3r. x can't be 0. (rather than cast this card from your hand, you may pay x3r and exile it with x time counters on it. at the beginning of your upkeep, remove a time counter. when the last is removed, cast it without paying its mana cost. it has haste.)

whenever a time counter is removed from detritivore while it's exiled, destroy target nonbasic land.