Amiara of the Tides

When Amiara of the Tides enters the battlefield, each player may draw a card.
{3}{u}, {t}: Return target creature to its owner's hand.
{5}{u}{u}, {t}: Target player reveals the top 7 cards of his or her library. Then, that player chooses another target player. The player chosen this way separates cards the first player revealed this way into two piles. The first player puts one pile into his or her hand and the other into his or her graveyard.