Karn, Legacy Reforged
~$19.24 low · ~$48.01 high
Colorless. Legendary Artifact Creature — Golem
Mystery Booster 2 #255 · Illustrated by Anthony S. Waters
Mystery Booster 2 #255 · Illustrated by Anthony S. WatersWhat is Karn, Legacy Reforged worth?
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TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
Karn's power and toughness are each equal to the greatest mana value among artifacts you control.
At the beginning of your upkeep, add 
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.
*/*
Format legality
All 5 printings of Karn, Legacy Reforged
| Printing | Rarity | Non-foil | Foil | Etched foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|---|
 Mystery Booster 2 mb2 #255· 2024mythic· Cardmarket €30.95 foil | mythic | No non-foil printing | $48.01 | No etched foil printing | €30.95 foil | |
 March of the Machine: The Aftermath mat #49· 2023mythic· Cardmarket €14.28 · €9.92 foil | mythic | $19.47 | $21.23 | No etched foil printing | €14.28€9.92 foil | |
 March of the Machine: The Aftermath mat #99· 2023ShowcaseRetro Framemythic· Cardmarket €14.28 · €13.90 foil | mythic | $19.94 | $19.24 | No etched foil printing | €14.28€13.90 foil | |
 March of the Machine: The Aftermath mat #149· 2023mythic | mythic | No non-foil printing | No foil printing | $21.76 | — | |
 March of the Machine: The Aftermath mat #184· 2023Extended Artmythic· Cardmarket €12.59 · €15.52 foil | mythic | $19.77 | $21.85 | No etched foil printing | €12.59€15.52 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy Karn, Legacy Reforged
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Card details
- First printed
- 2023
- Printings
- 5
- Mana value
- 5
- EDHREC rank
- #2,527 on EDHREC (Commander popularity)
- Artists
- Anthony S. Waters, Grzegorz Rutkowski, Daren Bader
What the codes mean
The small print at the bottom of the Mystery Booster 2 card (#255).
0255 · MB2 · M · EN
- 0255Collector number: this card's place in the set list.
- MB2Set code for Mystery Booster 2
- MMythic rare
- ENPrinted in English
- ★Foil. On foil cards a star replaces the dot between the set code and the language code.
How to read a Magic card: every part and code, on real cards.
Card breakdown
The parts of Karn, Legacy Reforged, read from the Mystery Booster 2 printing. Tap a label to highlight its line. How to read any Magic card.
- Top: name and cost
- Art and type line
- Text box
- Bottom: stats and the info line
The info line, magnified
Swipe to see the whole line.
Top: name and cost
Art and type line
Text box
Bottom: stats and the info line
Rulings (3)
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.
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.
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