Riptide Entrancer [Onslaught]

Set: Onslaught Type: Creature — Human Wizard Rare Cost: {1}{U}{U} Whenever Riptide Entrancer deals combat damage to a player, you may sacrifice it. If you do, gain control of target creature that player controls. (This effect lasts indefinitely.) Morph {U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)