Aeriel, Voice of Souls

Flying, Indestructible, Hexproof. Aeriel, Voice of Souls cannot be countered.
When Aeriel, Voice of Souls enters the battlefield choose 3 cards from your graveyard. Exile the rest. This card gets +1/+1 counters equal to the cards exiled from the game.
{w}{u}{b}{r}{g}{t}: Exile Aeriel, Voice of Souls and all counters, auras, and equipment on her. At your next upkeep return her to the field with all counters and cards still equipped, untapped.