Exava, Rakdos Blood Witch
Legendary Creature — Human Cleric, {2}{B}{R}
Oracle Text
First strike, haste
Unleash (You may have this creature enter with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)
Each other creature you control with a +1/+1 counter on it has haste.