Chaotic Goo (Rainbow Foil) (SLD-1658) [Secret Lair Drop Series] Foil

Chaotic Goo comes into play with three +1/+1 counters on it.

At the beginning of your upkeep, you may flip a coin. If you win the flip, put a +1/+1 counter on Chaotic Goo. If you lose the flip, remove a +1/+1 counter from Chaotic Goo.