name: The Mightstone and Weakstone // Urza, Planeswalker
printings: BRO, PBRO
text: When The Mightstone and Weakstone enters, choose one —\n• Draw two cards.\n• Target creature gets -5/-5 until end of turn.\n{T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells.\n(Melds with Urza, Lord Protector.)