Corwinnn's Defeat

Destroy target green planeswalker, or up to
two target green token creatures. If a Corwinnn
planeswalker was destroyed this way, create an
Acorn token. (It's an artifact with "{t}, Sacrifice
this artifact: add {g} and gain 2 life.")
"Your corlosss was inevitable, you pathetic squirrel."
—Nicol Bolas