First printed in War of the Spark (2019)
All 12 prints
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Bloomburrow Commander (BLC) #73, 2024
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Mystery Booster 2 (MB2) #3, 2024
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Ravnica Remastered (RVR) #1, 2024
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Secret Lair Drop (SLD) #253, 2021
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Secret Lair Drop (SLD) #501, 2021
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Magic Online Promos (PRM) #77979, 2019 (digital)
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Magic Online Promos (PRM) #72245, 2019 (digital)
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War of the Spark Promos (PWAR) #1p, 2019
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War of the Spark Promos (PWAR) #1s, 2019
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War of the Spark Promos (PWAR) #1s★, 2019
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War of the Spark (WAR) #1, 2019
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War of the Spark (WAR) #1★, 2019
Legendary Planeswalker — Karn
Activated abilities of artifacts your opponents control can't be activated.
+1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value.
−2: You may reveal an artifact card you own from outside the game or choose a face-up artifact card you own in exile. Put that card into your hand.
Loyalty: 5
- Illustrated by
- Wisnu Tan
Legality
- Legal in
- Modern, Legacy, Historic, Timeless, Gladiator, Commander, Duel Commander, Oathbreaker, Brawl, Competitive Brawl
- Restricted in
- Vintage
- Banned in
- Pioneer
- Not legal in
- Standard, Pauper, Future Standard, Alchemy, Penny Dreadful, Premodern, Old School 93/94, Pauper Commander, PreDH, Tiny Leaders, Standard Brawl
Rulings (6)
- A noncreature permanent that turns into a creature can attack, and its
abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn't matter how long the permanent has been a creature. - If a permanent has
in its mana cost, X is considered to be 0. - Karn's last ability can't get a face-down card in exile, even if you know it's an artifact card.
- In a casual game, a card you choose from outside the game comes from your personal collection. In a tournament event, a card you choose from outside the game must come from your sideboard. You may look at your sideboard at any time.
- Karn's first ability affects only artifacts on the battlefield. Activated abilities that work in other zones can still be activated.
- Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keyword abilities are activated abilities and will have colons in their reminder text, such as equip. Triggered abilities (starting with "when," "whenever," or "at") are unaffected by Karn.
Prices
MTGO price: 3.32 TIX, the cheapest non-foil print (average sell price on GoatBots, 1 Nov 2026).
Combos
292 combos, the most popular first:
- Activated abilities of permanents your opponents control can't be activated, Activated abilities can't be activated…: Karn, the Great Creator + Mycosynth Lattice
- Infinite damage, Infinite lifegain triggers: Aetherflux Reservoir + Karn, the Great Creator
- Infinite colorless mana, Infinite untap of artifact creatures you control: Basalt Monolith + Karn, the Great Creator + Voltaic Construct
- Infinite colorless mana, Infinite untap of artifact creatures you control: Karn, the Great Creator + Thran Dynamo + Voltaic Construct
- Infinite colorless mana, Infinite untap of artifact creatures you control: Karn, the Great Creator + Mana Vault + Voltaic Construct
- Infinite colorless mana, Infinite untap of artifact creatures you control: Everflowing Chalice + Karn, the Great Creator + Voltaic Construct
- Infinite colorless mana, Infinite untap of artifact creatures you control: Grim Monolith + Karn, the Great Creator + Voltaic Construct
- Infinite colorless mana: Basalt Monolith + Karn, the Great Creator + Training Grounds
- Infinite colored mana, Infinite untap of artifact creatures you control: Gilded Lotus + Karn, the Great Creator + Voltaic Construct
- Infinite colorless mana: Basalt Monolith + Heartstone + Karn, the Great Creator
