Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] Serra's Realm where X is the difference

where X is the difference

For each 1 damage prevented this way

Set: Core Set 2019 Prerelease Promos Type: Sorcery Rarity: Mythic Cost: {7}{R}{R}{R} Exile the top seven cards of your library

Set: JingHe Age Tokens Rarity: Rare Token Sources:

it's a matter of gibbon take

Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] Serra's Realm where X is the differenceSet: March of the Machine: The Aftermath Type: Legendary Artifact Creature Golem Rarity: Mythic Cost: {5} Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control. At the beginning of your upkeep, add C for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.