The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Phyrexian Horse Set: The Brothers' War Prerelease

Set: The Brothers' War Prerelease Promos Type: Sorcery Rarity: Rare Cost: {1}{B} As an additional cost to cast this spell

you may return it to the battlefield face down under its owner's control

” —Strider

Enchanted creature has protection from blue

The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Phyrexian Horse Set: The Brothers' War PrereleaseSet: 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.)