Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] SWSH058 as the ever-changing theatre of

as the ever-changing theatre of war dictates

or cutlasses

She now hears only Emrakul's murmurs

When Eternal Scourge becomes the target of a spell or ability an opponent controls

Whenever Key to the City becomes untapped

Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] SWSH058 as the ever-changing theatre ofSet: 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.