Relmier, Mind Theif

+1: Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.
-4: Gain control of target permanent with converted mana cost four or less.
-7: You get an emblem with "{u}{u}{b}{b}, Target opponent puts the top six cards from their library into their graveyard"