Jace, the Mind Sculptor [Double Masters] Avacyn Restored sacrifice Masticore unless you discard

sacrifice Masticore unless you discard a card

As Steam Vents enters the battlefield

Set: Starter 1999 Type: Sorcery Rarity: Rare Cost: {1}{G} You may play up to three additional lands this turn

Set: Limited Edition Alpha Type: Sorcery Common Cost: {B} Return target creature card from your graveyard to your hand

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Jace, the Mind Sculptor [Double Masters] Avacyn Restored sacrifice Masticore unless you discardSet: Double Masters Type: Legendary Planeswalker Jace 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.