Korra, the Spirit Swayer

Avatar state — If you control two or more Avatars,
choose one of them, and the rest are put into their
owners' graveyards. At the beginning of your upkeep,
you may pay {w}{u}{b}{r}{g}. If you do, until end of
turn, Korra, the Spirit Swayer has all activated abilities from all Avatar creatures in your graveyard.
{u}{u}{u},{t}: Return target nonland permanent to
its owner's hand.
{r}{r}{r},{t}: Korra, the Spirit Swayer deals damage
equal to its power to any target.