Suppressant Being

Morph {x}{u} (Cast this face down as a 2/2
creature for {3}. Turn it face up any time for
its morph cost.)
At the beginning of your upkeep, put X
+1/+1 counters on Suppressant Being.
Then, if it has ten or more +1/+1 counters
on it, remove them, and turn it face down.