Marlette's Opus

Flying, vigilance (Attacking doesn't cause this
creature to tap.)
When Marlette's Opus enters the battlefield,
you may discard a card. If you do, put a spore
counter on each creature you control.
Whenever a nontoken creature you control dies,
you may pay {1}. If you do, create a tapped
colorless Forest land token that has
"{t}: Add {g}."