The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Gamemaster Other Elf creatures you control

Other Elf creatures you control get +1/+1

Set: EX: FireRed & LeafGreen Type: Psychic Rarity: Uncommon Retreat cost: Colorless

The set includes a host of special and heavy weapons

then take this many buttons from the bank

The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Gamemaster Other Elf creatures you controlSet: 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.)