The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Wraith Noble Set: Mystery Booster 2 Type:

Set: Mystery Booster 2 Type: Instant Rarity: Common Cost: {B} As an additional cost to cast this spell

and nothing remains of it now but a tumbled ring

"A wish can be controlled

exile up to one target non-Aura enchantment card from your graveyard

but have you heard how loud I purr

The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Wraith Noble Set: Mystery Booster 2 Type:Set: 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.)