Flying
Clockwork Avian enters the battlefield with four +1/+0 counters on it.
At end of combat, if Clockwork Avian attacked or blocked this combat, remove a +1/+0 counter from it.
, : Put up to X +1/+0 counters on Clockwork Avian. This ability can't cause the total number of +1/+0 counters on Clockwork Avian to be greater than four. Activate this ability only during your upkeep.
Flying
When Clockwork Avian comes into play, put four +1/+0 counters on it. At the end of any combat in which Clockwork Avian is assigned to attack or block, remove a counter.
, : Put X +1/+0 counters on Clockwork Avian. You may have no more than four of these counters on Clockwork Avian. Use this ability only during your upkeep.
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