Clockwork Swarm

Flying
Clockwork Swarm enters the battlefield with X
+1/+1 counters on it.
When Clockwork Swarm dies, create a 1/1
colorless Insect creature token with flying for
each +1/+1 counter on Clockwork Swarm.
{2}, {t}: Put a +1/+1 counter on
Clockwork Swarm.