Driftwind Mystic

Flying
{t}, Sacrifice Driftwind Mystic: Counter target creature, instant, or sorcery spell. If it's countered this way, you may copy it. You may choose new targets for the copy. If it's a creature spell, it becomes a token and enters with a +1/+1 counter. If
it's an instant or sorcery spell, shuffle Driftwind Mystic from your graveyard into your library and mill cards equal to nine plus that spell's mana value. If no card named Driftwind Mystic was milled this way, draw two cards.