Cryptic Bioform

Cryptic Bioform enters the battlefield with X
+1/+1 counters on it where X is the number of creatures that died this turn.
At the beginning of your upkeep, if Cryptic
Bioform has two or more +1/+1 counters on it,
create a 1/1 green Ooze creature token.
Flash (You may cast this spell any time you could
cast an instant.)