Wasteland Elemental

(Wasteland Elemental isn't a spell, it's affected by summoning sickness, and it has "{t}: Add {c}.")

Wasteland Elemental isn't a creature unless there
are five or more land cards in an opponent's
graveyard.
{2}{c}{c}{c}, {t}: Destroy target land. It's controller
creates a colorless land token named Wastes.
It has "{t}: Add {c}."