Heroic abilities will resolve before the spell that caused them to trigger.
2013-09-15
Heroic abilities will trigger only once per spell, even if that spell targets the creature with the heroic ability multiple times.
2013-09-15
Heroic abilities won't trigger when a copy of a spell is created on the stack or when a spell's targets are changed to include a creature with a heroic ability.
Flying
Heroic — Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature.
