Acnologia, Arcane Dragon

Flying, menace, intimidate, protection from enchantments
Acnologia, Arcane Dragon can't be countered.
{1}{b}{r}{g}: Acnologia, Arcane Dragon deals 3
damage to target creature an opponent controls.
If the creature died this way, exile it instead, and
its owner discards a card. Otherwise, put a +1/+1
counter on that creature.