Mirri the Cursed 
Legendary Creature — Vampire Cat
Flying, first strike, haste Whenever Mirri deals combat damage to a creature, put a +1/+1 counter on Mirri.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Legendary Creature — Vampire Cat
Flying, first strike, haste Whenever Mirri deals combat damage to a creature, put a +1/+1 counter on Mirri.