Naiga, Seer of Tempests

+1: Draw a card then reveal a card at random from your hand. Target opponent may put that card on the top or bottom of your library.
-2: Discard a card, you may return target instant or sorcery spell with converted mana cost two or less from your graveyard to your hand.
-6: Each player shuffles his or her hand into his or her library. You draw seven cards.