Silver Surfer

+3: Until end of turn Silver Surfer becomes a 5/5 Cosmic Witch creature with Flying, Hexproof, and Indestructible that's still a planeswalker.
+2: Tap up to three target permanents, those permanents don't untap during their controllers next untap step. Scry 2, then draw two cards.
-15: Exile all but the bottom card of each opponents library, then draw ten cards. Untap all lands you control. Take an extra turn after this one.