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Karn, Legacy Reforged
MTGO 0.02 tix

Karn, Legacy Reforged

{5}

Legendary Artifact Creature — Golem

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.

* / *

Set
March of the Machine: The Aftermath (MAT #149)
Rarity
Mythic
Mana value
5
Released
2023-05-12
Artist
Grzegorz Rutkowski
EDHREC rank
#2,529
Finishes
Etched
Served from
Local database

Commander bracket

1 +
Fits any bracket
No Game Changer, land denial, extra turns or two-card combos.

Derived from card traits, not a ruling — bracket rules turn on how a deck intends to use a card. Bracket rules

EDHREC

Salt Score 0.48
How much players resent seeing this card. The scale tops out around 3.1.
Can be your commander
Ramp

Combos 17

Karn, Legacy Reforged+Voltaic Construct+The Peregrine Dynamo
{C}
Infinite colorless mana that can't be spent to cast nonartifact spells
380 decks Commander Spellbook ↗
Karn, Legacy Reforged+Lithoform Engine+Clock of Omens+Staff of Domination+Basalt Monolith
{C}
Infinite card drawInfinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite draw triggersInfinite lifegainInfinite lifegain triggersInfinite mana artifacts you control can produceInfinite mana creatures you control can produceInfinite untap of artifacts you controlInfinite untap of creatures you control
279 decks Commander Spellbook ↗
Karn, Legacy Reforged+Strionic Resonator+Clock of Omens+Staff of Domination+Basalt Monolith
{C}
Infinite card drawInfinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite draw triggersInfinite lifegainInfinite lifegain triggersInfinite mana artifacts you control can produceInfinite mana creatures you control can produceInfinite untap of artifacts you controlInfinite untap of creatures you control
171 decks Commander Spellbook ↗
Karn, Legacy Reforged+Lithoform Engine+Clock of Omens+Basalt Monolith+Grim Monolith
{C}
Infinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite mana artifacts you control can produceInfinite untap of artifacts you control
165 decks Commander Spellbook ↗
Karn, Legacy Reforged+Karn, Silver Golem+Lithoform Engine+Voltaic Construct
{C}
Infinite colorless mana that can't be spent to cast nonartifact spellsInfinite untap of artifact creatures you control
125 decks Commander Spellbook ↗
Karn, Legacy Reforged+Strionic Resonator+Clock of Omens+Basalt Monolith+Grim Monolith
{C}
Infinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite mana artifacts you control can produceInfinite untap of artifacts you control
113 decks Commander Spellbook ↗
Karn, Legacy Reforged+Lithoform Engine+Clock of Omens+Staff of Domination+Grim Monolith
{C}
Infinite card drawInfinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite draw triggersInfinite lifegainInfinite lifegain triggersInfinite mana artifacts you control can produceInfinite mana creatures you control can produceInfinite untap of artifacts you controlInfinite untap of creatures you control
110 decks Commander Spellbook ↗
Karn, Legacy Reforged+Strionic Resonator+Clock of Omens+Staff of Domination+Grim Monolith
{C}
Infinite card drawInfinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite draw triggersInfinite lifegainInfinite lifegain triggersInfinite mana artifacts you control can produceInfinite mana creatures you control can produceInfinite untap of artifacts you controlInfinite untap of creatures you control
81 decks Commander Spellbook ↗
Karn, Legacy Reforged+Karn, Silver Golem+Strionic Resonator+Voltaic Construct
{C}
Infinite colorless mana that can't be spent to cast nonartifact spellsInfinite untap of artifact creatures you control
53 decks Commander Spellbook ↗
Karn, Legacy Reforged+Lithoform Engine+Filigree Sages+Chromatic Orrery
{U}
Infinite card drawInfinite colored manaInfinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite draw triggersInfinite untap of artifacts you control
20 decks Commander Spellbook ↗
Karn, Legacy Reforged+Lithoform Engine+Filigree Sages+Mycosynth Lattice
{U}
Infinite colored manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite mana permanents you control can produceInfinite untap of permanents you control
7 decks Commander Spellbook ↗
Karn, Legacy Reforged+Strionic Resonator+Filigree Sages+Chromatic Orrery
{U}
Infinite card drawInfinite colored manaInfinite colorless manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite draw triggersInfinite untap of artifacts you control
7 decks Commander Spellbook ↗
Karn, Legacy Reforged+Strionic Resonator+Filigree Sages+Mycosynth Lattice
{U}
Infinite colored manaInfinite colorless mana that can't be spent to cast nonartifact spellsInfinite mana permanents you control can produceInfinite untap of permanents you control
3 decks Commander Spellbook ↗
Virtue of Knowledge // Vantress Visions+Karn, Legacy Reforged+Dualcaster Mage+Emiel the Blessed
{R}{G}{W}{U}
Infinite blinkingInfinite colorless manaInfinite copies of abilities you control on the stackInfinite creature ETBInfinite creature LTBInfinite magecraft triggers
0 decks Commander Spellbook ↗
Virtue of Knowledge // Vantress Visions+Karn, Legacy Reforged+Naru Meha, Master Wizard+Eldrazi Displacer
{W}{U}
Infinite blinkingInfinite blinking of most creaturesInfinite colorless manaInfinite copies of abilities you control on the stackInfinite creature ETBInfinite creature LTBInfinite magecraft triggers
0 decks Commander Spellbook ↗
Virtue of Knowledge // Vantress Visions+Karn, Legacy Reforged+Naru Meha, Master Wizard+Emiel the Blessed
{G}{W}{U}
Infinite blinkingInfinite colorless manaInfinite copies of abilities you control on the stackInfinite creature ETBInfinite creature LTBInfinite magecraft triggers
0 decks Commander Spellbook ↗
Virtue of Knowledge // Vantress Visions+Karn, Legacy Reforged+Dualcaster Mage+Eldrazi Displacer
{U}{R}{W}
Infinite blinkingInfinite blinking of most creaturesInfinite colorless manaInfinite copies of abilities you control on the stackInfinite creature ETBInfinite creature LTBInfinite magecraft triggers
0 decks Commander Spellbook ↗

All 17 combos.

Commander recommendations

Top synergy 50

Played far more in this commander's decks than elsewhere.

  1. Darksteel Forge 64 %+42.1 %
  2. Karn, Living Legacy 52 %+40.9 %
  3. Mycosynth Golem 57 %+40.3 %
  4. Darksteel Colossus 49 %+38.5 %
  5. Lodestone Golem 47 %+38.1 %
  6. Foundry Inspector 86 %+36.2 %
  7. Cloud Key 67 %+35.6 %
  8. Sculpting Steel 68 %+34.9 %
  9. Metalwork Colossus 62 %+34.8 %
  10. Blightsteel Colossus 56 %+33.3 %
  11. Wurmcoil Engine 48 %+31.2 %
  12. Cryptothrall 49 %+30.6 %
  13. Unwinding Clock 72 %+30.6 %
  14. Jhoira's Familiar 65 %+30.3 %
  15. Darksteel Citadel 80 %+30.0 %
  16. Mirrorworks 39 %+29.8 %
  17. Planar Bridge 46 %+29.0 %
  18. Shimmer Myr 50 %+28.7 %
  19. Scrap Trawler 54 %+28.5 %
  20. Platinum Angel 42 %+27.7 %
  21. Cityscape Leveler 43 %+26.1 %
  22. Mind's Eye 55 %+26.1 %
  23. Steel Hellkite 44 %+25.9 %
  24. Myr Retriever 50 %+24.7 %
  25. Steel Overseer 52 %+24.2 %
  26. Walking Ballista 43 %+23.9 %
  27. Karn, the Great Creator 39 %+23.6 %
  28. Treasure Vault 40 %+23.6 %
  29. Platinum Emperion 30 %+22.7 %
  30. Nettlecyst 33 %+22.4 %
  31. Kuldotha Forgemaster 37 %+22.4 %
  32. Meteor Golem 52 %+22.0 %
  33. Darksteel Juggernaut 30 %+22.0 %
  34. Memnarch, the Warden 35 %+20.8 %
  35. Cybermen Squadron 32 %+20.2 %
  36. Stonecoil Serpent 39 %+19.9 %
  37. Urza's Factory 46 %+19.8 %
  38. Staff of Domination 31 %+19.2 %
  39. Inventors' Fair 64 %+19.0 %
  40. Myr Battlesphere 38 %+19.0 %
  41. Karn, Scion of Urza 26 %+18.5 %
  42. Triplicate Titan 26 %+18.4 %
  43. Buried Ruin 73 %+18.4 %
  44. Liberator, Urza's Battlethopter 64 %+17.2 %
  45. Krang, Utrom Warlord 34 %+17.2 %
  46. Colossus of Akros 21 %+16.6 %
  47. Ultron, Artificial Malevolence 27 %+16.4 %
  48. Manifold Key 50 %+16.3 %
  49. Horizon Stone 26 %+16.2 %
  50. Phyrexian Triniform 26 %+16.1 %

Most included 50

Highest share of decks running them, distinctive or not.

  1. Sol Ring 95 %+0.8 %
  2. Forsaken Monument 88 %-0.1 %
  3. Foundry Inspector 86 %+36.2 %
  4. Urza's Mine 85 %+1.2 %
  5. Urza's Tower 85 %+1.2 %
  6. Urza's Power Plant 85 %+1.1 %
  7. Mystic Forge 84 %+9.9 %
  8. Wastes 83 %-2.2 %
  9. Darksteel Citadel 80 %+30.0 %
  10. All Is Dust 79 %-6.2 %
  11. Thran Dynamo 77 %-2.5 %
  12. Buried Ruin 73 %+18.4 %
  13. Unwinding Clock 72 %+30.6 %
  14. Shrine of the Forsaken Gods 68 %-6.1 %
  15. Sculpting Steel 68 %+34.9 %
  16. Palladium Myr 68 %-1.5 %
  17. Cloud Key 67 %+35.6 %
  18. Ugin, the Ineffable 66 %-6.4 %
  19. Jhoira's Familiar 65 %+30.3 %
  20. Reliquary Tower 65 %+4.4 %
  21. Mind Stone 65 %-2.8 %
  22. Darksteel Forge 64 %+42.1 %
  23. Liberator, Urza's Battlethopter 64 %+17.2 %
  24. Inventors' Fair 64 %+19.0 %
  25. War Room 64 %-2.4 %
  26. Everflowing Chalice 63 %+8.2 %
  27. Null Elemental Blast 63 %-1.9 %
  28. Rogue's Passage 63 %+0.7 %
  29. Thought Vessel 62 %+0.4 %
  30. Metalwork Colossus 62 %+34.8 %
  31. Urza's Workshop 59 %+9.4 %
  32. Mycosynth Golem 57 %+40.3 %
  33. Blightsteel Colossus 56 %+33.3 %
  34. Urza's Cave 55 %+1.6 %
  35. Mind's Eye 55 %+26.1 %
  36. Hedron Archive 55 %-8.7 %
  37. Scrap Trawler 54 %+28.5 %
  38. Tomb of the Spirit Dragon 53 %-1.4 %
  39. Urza's Saga 52 %+9.8 %
  40. Solemn Simulacrum 52 %+0.4 %
  41. Meteor Golem 52 %+22.0 %
  42. Karn, Living Legacy 52 %+40.9 %
  43. Steel Overseer 52 %+24.2 %
  44. Shimmer Myr 50 %+28.7 %
  45. Temple of the False God 50 %-4.3 %
  46. Manifold Key 50 %+16.3 %
  47. Myr Retriever 50 %+24.7 %
  48. Darksteel Colossus 49 %+38.5 %
  49. Basalt Monolith 49 %+4.3 %
  50. Cryptothrall 49 %+30.6 %

Format legality

Standard Not legal
Pioneer Legal
Modern Legal
Legacy Legal
Vintage Legal
Pauper Not legal
Commander Legal
Oathbreaker Legal
Duel Commander Legal
Brawl Legal
Standard Brawl Not legal
Historic Legal
Timeless Legal
Alchemy Not legal
Penny Legal
Premodern Not legal
PreDH Not legal
Pauper EDH Not legal
Old School Not legal
Future Not legal
Gladiator Legal
All printingsScryfall ↗Gatherer ↗Edhrec ↗

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.

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