Type

Artifact Creature — Bird

Oracle Text

Flying\nThis creature enters with four +1/+0 counters on it.\nAt end of combat, if this creature attacked or blocked this combat, remove a +1/+0 counter from it.\n{X}, {T}: Put up to X +1/+0 counters on this creature. This ability can't cause the total number of +1/+0 counters on this creature to be greater than four. Activate only during your upkeep.