Karn, Legacy Reforged

Karn, Legacy Reforged {5}

Legendary Artifact Creature - Golem
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.
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Details
Legalities
Rulings
  • 2023-05-12 Karn's last ability isn't a mana ability, even though it adds mana. It uses the stack and it can be responded to. Use the number of artifacts you control as the ability resolves to determine how much mana to add.
  • 2023-05-12 The ability that defines Karn's power and toughness works in all zones, not just the battlefield. As long as Karn is under your control and still an artifact, its own mana value will count. In most cases, it'll be at least 5/5.
  • 2023-05-12 The mana produced by Karn's last ability can be spent on anything that isn't a nonartifact spell. This includes casting artifact spells, paying costs to activate abilities of both artifact and nonartifact permanents, paying ward costs, and so on.
Printings
  • Mystery Booster 2 (mythic)
  • March of the Machine: The Aftermath 49 99 149 184 (mythic)

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Foreign names
  • 神兵重铸卡恩
  • Karn, neu geschmiedetes Vermächtnis
  • Karn, l'héritage reforgé
  • Karn, Eredità Riforgiata
  • 再鍛されたレガシー、カーン
  • Karn, Legado Reforjado
  • Karn, legado reforjado