Tonicoatl, Bonded Champion

Whenever Tonicoatl, Bonded Champion attacks,
you may pay {2}{w}{r}{g}. If you do, put a Dinosaur
creature from your hand onto the battlefield,
tapped and attacking. If you do, at the beginning
of the next end step, return it to your hand.
Whenever a Dinosaur your control leaves the
battlefield, it deals 1 damage to each opponent
and each creature they control.
"I suggest you run now."