Jace, the Mind Sculptor [Worldwake] 256 you can discard 1 card

you can discard 1 card to add 1 Iron Core of Koa'ki Meiru from your Deck to your hand

You can Special Summon this card from your hand as part of a Chain of 2 or more Links

and your other monster(s) cannot attack

You can Tribute Summon this card by Tributing 1 monster

If this card battles

Jace, the Mind Sculptor [Worldwake] 256 you can discard 1 cardSet: Worldwake Type: Legendary Planeswalker Jace Rarity: Mythic Cost: {2}{U}{U} +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.