Skarrgan Anomaly

Riot (This creature enters the battlefield with your
choice of a +1/+1 counter or haste.)
Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can’t block
as long as it has a +1/+1 counter on it.)
{5}{g}: Adapt 4. (If this creature has no +1/+1
counters on it, put four +1/+1 counters on it.)