Byrke, Long Ear of the Law 
Legendary Creature — Rabbit Soldier
Vigilance When Byrke enters, put a +1/+1 counter on each of up to two target creatures. Whenever a creature you control with a +1/+1 counter on it attacks, double the number of +1/+1 counters on it.
Legality
standardLEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL