The Mightstone and Weakstone [The Brothers' War Prerelease Promos] 078 that source deals double that

that source deals double that damage to that player or permanent instead

Set: Year of the Rabbit 2023 Type: Artifact — Equipment Rarity: Rare Cost: {2} Equipped creature has hexproof and haste

Set: Neo Revelation Unlimited Type: Darkness Rarity: Rare

attach it to target legendary creature you control

Set: March of the Machine Type: Legendary Planeswalker — Wrenn Rarity: Mythic Cost: {1}{G}{G} Lands you control have “{T}: Add one mana of any color

The Mightstone and Weakstone [The Brothers' War Prerelease Promos] 078 that source deals double thatSet: 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.)