Jace, the Mind Sculptor is a mythic Legendary Planeswalker — Jace card from Magic Online Promos (PRM), collector number 82878.
+2: Look at the top card of target player's library. You may put that card on the bottom of that player's library. 0: Draw three cards, then put two cards from your hand on top of your library in any order. −1: Return target creature to its owner's hand. −12: Exile all cards from target player's library, then that player shuffles their hand into their library.