Clockwork Swarm comes into play with four +1/+0 counters on it. Clockwork Swarm can't be blocked by Walls. At end of combat, if Clockwork Swarm attacked or blocked this turn, remove a +1/+0 counter from it. , Put up to X +1/+0 counters on Clockwork Swarm. This ability can't cause the total number of +1/+0 counters on Clockwork Swarm to be greater than four. Play this ability only during your upkeep.
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Put up to X +1/+0 counters on Clockwork Swarm. This ability can't cause the total number of +1/+0 counters on Clockwork Swarm to be greater than four. Play this ability only during your upkeep. 