The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Promo Pay 2 life: Add one

Pay 2 life: Add one mana of any color

Set: Phyrexia: All Will Be One Promos Type: Enchantment Rarity: Mythic Cost: {3}{R}{R} Whenever you put one or more counters on a permanent or player

Set: Digital Hazard Promos Card type: Digimon Rarity: Promo Digi type: Holy Warrior Play Cost: 15 Form: Mega Attribute: Virus Digivolve Cost: 6 Digivolve Cost Level: 6 [When Digivolving] Delete all of your opponent's Digimon with the highest DP

and “When this creature dies

The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Promo Pay 2 life: Add oneSet: 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.)