![Karn, Legacy Reforged (49) [March of the Machine: The Aftermath]](http://alwaysgames.ca/cdn/shop/files/495612_in_1000x1000_7aa19159-4b6a-411d-853a-1ff51c65cb73.jpg?v=1771542404&width=646)
![Karn, Legacy Reforged (49) [March of the Machine: The Aftermath]](http://alwaysgames.ca/cdn/shop/files/495612_in_1000x1000_7aa19159-4b6a-411d-853a-1ff51c65cb73_1024x.jpg?v=1771542404)
Description
| Set: | March of the Machine: The Aftermath |
| Type: | Legendary Artifact Creature — Golem |
| Rarity: | mythic |
| Cost: | {5} |
Karn'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.