Herald of War 
Creature — Angel
Flying
Whenever this creature attacks, put a +1/+1 counter on it.
Angel spells and Human spells you cast cost 
less to cast for each +1/+1 counter on this creature.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL