Adrenaline Jockey 
Creature — Minotaur Pilot
Whenever a player casts a spell, if it's not their turn, this creature deals 4 damage to them. Whenever you activate an exhaust ability, put a +1/+1 counter on this creature.
Legality
standardLEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL