The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Historicbrawl “Whatever is wrong in the

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The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Historicbrawl “Whatever is wrong in theSet: The Brothers' War Prerelease Promos Type: Legendary Artifact Powerstone Rarity: Rare Cost: {5} When The Mightstone and Weakstone enters the battlefield, choose one Draw two cards. Target creature gets 5 5 until end of turn. {T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells. (Melds with Urza, Lord Protector.)