Chaotic Goo enters 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.
NM-Mint - $1.40
Lightly Played - $1.30
Moderately Played - $1.20
Heavily Played - $1.10
Damaged - $0.90
NM-Mint Non English - $1.40
Lightly Played Non English - $1.30
Moderately Played Non English - $1.20
Heavily Played Non English - $1.10
Damaged Non English - $0.90