Jace, Memory Adept [M12 - 58] Prerelease Cards When Prison Realm enters the

When Prison Realm enters the battlefield

You may reveal that card if it has three or more colored mana symbols in its mana cost

Otto Octavius's mechanical arms became his most formidable weapons

Exile Draconic Intervention

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Jace, Memory Adept [M12 - 58] Prerelease Cards When Prison Realm enters theRarity: M #: 58 Creature Type or Sub Type: Planeswalker Jace Rules Text Contains: [+1]: Draw a card. Target player puts the top card of his or her library into his or her graveyard. [0]: Target player puts the top ten cards of his or her library into his or her graveyard. [ 7]: Any number of target players each draw twenty cards.