Dath, Nature's Vigor

Reach, trample, vigilance
Whenever Dath enters or leaves the battlefield,
for each opponent, exile that player's graveyard
and a nonbasic permanent of your choice that
player controls.Then, put two 2/2 green
Elemental creature tokens onto the battlefield for
each permanent card in exile.
If this card leaves the battlefield, or is put into
your graveyard or exile from anywhere, exile
it with a binding counter on it instead.