The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Fighting[+10] This mana can't be spent

This mana can't be spent to cast nonartifact spells

Set: International Collectors' Edition Type: Sorcery Rarity: Rare Cost: {1}{W} Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest

"I await your donation

Set: Mystery Booster Type: Enchantment Rarity: Rare Cost: {3}{G} At the beginning of your upkeep

birds of paradise littered the skies

The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Fighting[+10] This mana can't be spentSet: 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.)