The Mightstone and Weakstone [The Brothers' War: Prerelease Promos] Black Star Promo Set: Commander 2011 Type: Enchantment

Set: Commander 2011 Type: Enchantment Rarity: Rare Cost: {1}{B}{B}{B} Whenever a creature you control dies

Set: Fossil 1st Edition Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

Set: Diamond & Pearl: Great Encounters Type: Metal Rarity: Holo Rare Retreat cost: 2

Set: McDonald's Promos: 2014 Collection Type: Darkness Rarity: Promo Retreat cost: Colorless

Gleemax's blatant disregard for flavor text

The Mightstone and Weakstone [The Brothers' War: Prerelease Promos] Black Star Promo Set: Commander 2011 Type: EnchantmentSet: 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.)