Jeng, Tweaker of Worlds

+2: Scry 1. If you have a spectacle in your hand, you may reveal it. If you do, draw a card and discard a card.
0: Until end of turn, Jeng becomes a X/3 Wizard creature that's still a planeswalker, where X is the number of Grimoires you control.
-6: Gain control of target player during his or her next turn.