Karn, Legacy Reforged + Lithoform Engine + Clock of Omens + Basalt Monolith + Grim Monolith
Karn, Legacy Reforged
Lithoform Engine
Clock of Omens
Basalt Monolith
Grim Monolith
Requires
Karn, Legacy Reforged must be on the battlefield.
Lithoform Engine must be on the battlefield.
Clock of Omens must be on the battlefield.
Basalt Monolith must be on the battlefield.
Grim Monolith must be on the battlefield.
Mana needed: 
Steps
- At the beginning of your upkeep, Karn triggers.
- Holding priority, activate Lithoform Engine's first ability by paying and tapping it, copying Karn's ability.
- Resolve the copy of Karn's ability, adding for each artifact you control that cannot be spent to cast nonartifact spells.
- Activate Clock of Omens by tapping Basalt Monolith and Grim Monolith, untapping Lithoform Engine.
- Activate Basalt Monolith's second ability by paying
, untapping it. - Activate Grim Monolith's second ability by paying
, untapping it. - Repeat from step 2.
Results
Infinite colorless mana that cannot be spent to cast nonartifact spells. Infinite mana artifacts you control can produce. Infinite untap of artifacts you control.
Top Commanders
Karn, Legacy Reforged
1.13% of 4879 decks
55 decks
The Peregrine Dynamo
3.35% of 656 decks
22 decks
Liberator, Urza's Battlethopter
0.65% of 2634 decks
17 decks
Karn, Silver Golem
0.93% of 964 decks
9 decks
Kozilek, the Great Distortion
0.12% of 5601 decks
7 decks
Urza, Lord High Artificer
0.02% of 13601 decks
3 decks
Zhulodok, Void Gorger
0.02% of 18060 decks
3 decks
Kozilek, Butcher of Truth
0.35% of 869 decks
3 decks
Ulamog, the Defiler
0.27% of 753 decks
2 decks
Chiss-Goria, Forge Tyrant
0.05% of 3979 decks
2 decks
Syr Ginger, the Meal Ender
0.09% of 2286 decks
2 decks
Traxos, Scourge of Kroog
0.11% of 1753 decks
2 decks
Kinnan, Bonder Prodigy
0.01% of 13268 decks
1 decks
Jan Jansen, Chaos Crafter
0.02% of 4338 decks
1 decks
Alibou, Ancient Witness
0.05% of 1861 decks
1 decks
Mishra, Eminent One
0.01% of 6940 decks
1 decks
Urza, Chief Artificer
0.01% of 13610 decks
1 decks
Lara Croft, Tomb Raider
0.03% of 2944 decks
1 decks
New Cards
Ugin, Eye of the Storms
60% of 5 decks
+60% synergy
The Aetherspark
18% of 22 decks
+17% synergy
Muraganda Raceway
9% of 22 decks
+7% synergy
Aetheric Amplifier
9% of 22 decks
+8% synergy
Monument to Endurance
5% of 21 decks
+3% synergy
High Synergy Cards
Forsaken Monument
91% of 137 decks
+89% synergy
Mystic Forge
90% of 137 decks
+87% synergy
Unwinding Clock
87% of 137 decks
+84% synergy
Inventors' Fair
88% of 137 decks
+84% synergy
Great Furnace
86% of 7 decks
+80% synergy
All Is Dust
79% of 137 decks
+77% synergy
Metalworker
77% of 137 decks
+77% synergy
Voltaic Key
77% of 137 decks
+77% synergy
Urza's Saga
82% of 137 decks
+76% synergy
Urza's Power Plant
76% of 137 decks
+74% synergy
Top Cards
Manifold Key
75% of 137 decks
+74% synergy
Sculpting Steel
73% of 137 decks
+71% synergy
Deflecting Swat
71% of 7 decks
+55% synergy
Foundry Inspector
71% of 137 decks
+67% synergy
Rings of Brighthearth
70% of 137 decks
+69% synergy
Etherium Sculptor
70% of 10 decks
+65% synergy
Sensei's Divining Top
68% of 137 decks
+63% synergy
Karn, the Great Creator
63% of 137 decks
+62% synergy
Mind Stone
63% of 137 decks
+46% synergy
Whir of Invention
60% of 10 decks
+57% synergy
Game Changers
Mana Vault
88% of 137 decks
+81% synergy
Ancient Tomb
77% of 137 decks
+67% synergy
The One Ring
66% of 137 decks
+58% synergy
Urza, Lord High Artificer
60% of 10 decks
+57% synergy
Fierce Guardianship
60% of 10 decks
+42% synergy
Cyclonic Rift
60% of 10 decks
+33% synergy
Rhystic Study
60% of 10 decks
+33% synergy
Jeska's Will
43% of 7 decks
+26% synergy
Mox Diamond
25% of 137 decks
+20% synergy
Trinisphere
17% of 137 decks
+16% synergy
Creatures
Phyrexian Metamorph
60% of 10 decks
+53% synergy
Walking Ballista
55% of 137 decks
+52% synergy
Kuldotha Forgemaster
54% of 137 decks
+53% synergy
Liberator, Urza's Battlethopter
53% of 137 decks
+52% synergy
Jhoira's Familiar
52% of 137 decks
+50% synergy
Scrap Trawler
45% of 137 decks
+43% synergy
Myr Retriever
45% of 137 decks
+43% synergy
Forensic Gadgeteer
43% of 7 decks
+40% synergy
Wandering Archaic
42% of 137 decks
+41% synergy
Master Transmuter
40% of 10 decks
+39% synergy
Thought Monitor
40% of 10 decks
+37% synergy
The Reality Chip
40% of 10 decks
+36% synergy
Emry, Lurker of the Loch
40% of 10 decks
+36% synergy
Cityscape Leveler
38% of 137 decks
+37% synergy
Blightsteel Colossus
38% of 137 decks
+36% synergy
Voltaic Construct
37% of 137 decks
+37% synergy
Palladium Myr
37% of 137 decks
+35% synergy
Kozilek, Butcher of Truth
31% of 137 decks
+30% synergy
Mycosynth Golem
31% of 137 decks
+30% synergy
Shimmer Myr
31% of 137 decks
+29% synergy
Grand Architect
30% of 10 decks
+29% synergy
Drafna, Founder of Lat-Nam
30% of 10 decks
+29% synergy
Silver Myr
30% of 10 decks
+27% synergy
Padeem, Consul of Innovation
30% of 10 decks
+27% synergy
Spellskite
30% of 10 decks
+27% synergy
Ulamog, the Ceaseless Hunger
30% of 137 decks
+29% synergy
Glaring Fleshraker
30% of 64 decks
+28% synergy
Abstruse Archaic
29% of 113 decks
+29% synergy
Skittering Cicada
29% of 113 decks
+29% synergy
Kozilek, the Great Distortion
29% of 137 decks
+28% synergy
Lodestone Golem
28% of 137 decks
+28% synergy
Ulamog, the Defiler
28% of 64 decks
+27% synergy
Metalwork Colossus
26% of 137 decks
+25% synergy
Ulamog, the Infinite Gyre
26% of 137 decks
+24% synergy
Junk Diver
23% of 137 decks
+22% synergy
Marvin, Murderous Mimic
22% of 45 decks
+21% synergy
Wurmcoil Engine
22% of 137 decks
+20% synergy
Meteor Golem
21% of 137 decks
+19% synergy
Cryptothrall
18% of 137 decks
+18% synergy
Endbringer
18% of 137 decks
+17% synergy
Myr Battlesphere
18% of 137 decks
+16% synergy
Steel Hellkite
18% of 137 decks
+16% synergy
Kozilek, the Broken Reality
17% of 64 decks
+16% synergy
Karn, Silver Golem
17% of 137 decks
+17% synergy
Platinum Angel
16% of 137 decks
+15% synergy
Solemn Simulacrum
16% of 137 decks
+2% synergy
Roaming Throne
15% of 98 decks
+8% synergy
Emrakul, the Promised End
15% of 137 decks
+14% synergy
Scrawling Crawler
14% of 35 decks
+12% synergy
Myr Welder
14% of 137 decks
+14% synergy
Instants
Mana Drain
60% of 10 decks
+45% synergy
Dramatic Reversal
40% of 10 decks
+35% synergy
An Offer You Can't Refuse
40% of 10 decks
+19% synergy
Null Elemental Blast
35% of 69 decks
+34% synergy
Warping Wail
33% of 137 decks
+32% synergy
Swan Song
30% of 10 decks
+14% synergy
Negate
30% of 10 decks
+8% synergy
Kozilek's Command
28% of 64 decks
+27% synergy
Spatial Contortion
20% of 137 decks
+19% synergy
Eldritch Immunity
19% of 64 decks
+18% synergy
Desecrate Reality
19% of 113 decks
+18% synergy
Scour from Existence
15% of 137 decks
+14% synergy
Eldrazi Confluence
12% of 64 decks
+12% synergy
Titan's Presence
12% of 137 decks
+11% synergy
Not of This World
11% of 137 decks
+10% synergy
Sorceries
Fabricate
50% of 10 decks
+44% synergy
Gamble
43% of 7 decks
+33% synergy
Vandalblast
43% of 7 decks
+27% synergy
Transmute Artifact
40% of 10 decks
+39% synergy
Rise of the Eldrazi
21% of 113 decks
+20% synergy
Calamity of the Titans
12% of 113 decks
+12% synergy
Introduction to Annihilation
8% of 137 decks
+8% synergy
Selective Obliteration
8% of 64 decks
+7% synergy
Gruesome Slaughter
5% of 137 decks
+5% synergy
Introduction to Prophecy
5% of 137 decks
+5% synergy
Utility Artifacts
Darksteel Forge
60% of 137 decks
+59% synergy
Staff of Domination
59% of 137 decks
+57% synergy
Cloud Key
58% of 137 decks
+57% synergy
Moonsilver Key
55% of 137 decks
+54% synergy
Planar Bridge
50% of 137 decks
+50% synergy
Chimil, the Inner Sun
47% of 98 decks
+45% synergy
Expedition Map
45% of 137 decks
+41% synergy
Hedron Archive
43% of 137 decks
+40% synergy
Mycosynth Lattice
42% of 137 decks
+41% synergy
Lightning Greaves
40% of 137 decks
+15% synergy
Mirage Mirror
39% of 137 decks
+37% synergy
Krark-Clan Ironworks
38% of 137 decks
+37% synergy
Portal to Phyrexia
36% of 137 decks
+34% synergy
Darksteel Monolith
35% of 113 decks
+35% synergy
Semblance Anvil
34% of 137 decks
+33% synergy
Mind's Eye
31% of 137 decks
+31% synergy
Jeweled Lotus
31% of 137 decks
+27% synergy
Commander's Plate
30% of 137 decks
+28% synergy
Doubling Cube
29% of 137 decks
+29% synergy
Mirrorworks
28% of 137 decks
+28% synergy
Strionic Resonator
28% of 137 decks
+25% synergy
Lotus Petal
28% of 137 decks
+21% synergy
Aetherflux Reservoir
26% of 137 decks
+22% synergy
The Immortal Sun
25% of 137 decks
+24% synergy
The Millennium Calendar
21% of 98 decks
+21% synergy
God-Pharaoh's Statue
21% of 137 decks
+20% synergy
Vedalken Orrery
20% of 137 decks
+18% synergy
Helm of the Host
20% of 137 decks
+17% synergy
Memory Jar
19% of 137 decks
+19% synergy
Dreamstone Hedron
18% of 137 decks
+17% synergy
Torpor Orb
18% of 137 decks
+17% synergy
Spine of Ish Sah
17% of 137 decks
+16% synergy
Nevinyrral's Disk
17% of 137 decks
+16% synergy
Agatha's Soul Cauldron
17% of 108 decks
+15% synergy
Eye of Vecna
16% of 137 decks
+16% synergy
Mindslaver
16% of 137 decks
+16% synergy
Winter Orb
16% of 137 decks
+15% synergy
PalantÃr of Orthanc
16% of 122 decks
+14% synergy
Static Orb
15% of 137 decks
+15% synergy
Thran Temporal Gateway
15% of 137 decks
+14% synergy
Horizon Stone
15% of 137 decks
+14% synergy
Swiftfoot Boots
15% of 137 decks
-13% synergy
Gonti's Aether Heart
14% of 137 decks
+13% synergy
Stonespeaker Crystal
14% of 137 decks
+13% synergy
Trading Post
14% of 137 decks
+13% synergy
Akroma's Memorial
14% of 137 decks
+13% synergy
Scroll Rack
14% of 137 decks
+12% synergy
Howling Mine
14% of 137 decks
+12% synergy
Codex Shredder
13% of 137 decks
+12% synergy
Shadowspear
13% of 137 decks
+10% synergy
Enchantments
Echoes of Eternity
42% of 64 decks
+41% synergy
Training Grounds
40% of 10 decks
+37% synergy
Power Artifact
30% of 10 decks
+30% synergy
Mystic Remora
30% of 10 decks
+13% synergy
Eldrazi Conscription
5% of 137 decks
+4% synergy
Planeswalkers
Ugin, the Ineffable
60% of 137 decks
+58% synergy
Ugin, the Spirit Dragon
47% of 137 decks
+46% synergy
Tezzeret the Seeker
40% of 10 decks
+38% synergy
Karn, Living Legacy
36% of 137 decks
+36% synergy
Karn, Scion of Urza
28% of 137 decks
+28% synergy
Karn Liberated
23% of 137 decks
+23% synergy
Utility Lands
Vault of Whispers
100% of 3 decks
+96% synergy
Ancient Den
100% of 3 decks
+95% synergy
Buried Ruin
79% of 137 decks
+74% synergy
Urza's Mine
76% of 137 decks
+74% synergy
Urza's Tower
76% of 137 decks
+74% synergy
Darksteel Citadel
72% of 137 decks
+69% synergy
Academy Ruins
70% of 10 decks
+65% synergy
Seat of the Synod
70% of 10 decks
+64% synergy
War Room
67% of 137 decks
+61% synergy
Urza's Workshop
64% of 137 decks
+63% synergy
Thespian's Stage
58% of 137 decks
+55% synergy
Shrine of the Forsaken Gods
53% of 137 decks
+52% synergy
Mishra's Workshop
49% of 137 decks
+49% synergy
Strip Mine
49% of 137 decks
+46% synergy
Fomori Vault
45% of 71 decks
+44% synergy
Scavenger Grounds
45% of 137 decks
+41% synergy
Blast Zone
43% of 137 decks
+42% synergy
Reliquary Tower
42% of 137 decks
+13% synergy
Crystal Vein
39% of 137 decks
+38% synergy
Wasteland
39% of 137 decks
+37% synergy
Treasure Vault
39% of 137 decks
+36% synergy
Scorched Ruins
38% of 137 decks
+38% synergy
Rogue's Passage
38% of 137 decks
+18% synergy
Urza's Factory
37% of 137 decks
+37% synergy
Zhalfirin Void
36% of 137 decks
+36% synergy
Mikokoro, Center of the Sea
36% of 137 decks
+35% synergy
Vesuva
36% of 137 decks
+34% synergy
Homeward Path
35% of 137 decks
+33% synergy
Sanctum of Ugin
34% of 137 decks
+34% synergy
Deserted Temple
33% of 137 decks
+32% synergy
Ugin's Labyrinth
32% of 69 decks
+31% synergy
Minamo, School at Water's Edge
30% of 10 decks
+26% synergy
Bonders' Enclave
30% of 137 decks
+28% synergy
Emergence Zone
26% of 137 decks
+23% synergy
Command Beacon
25% of 137 decks
+20% synergy
Arch of Orazca
24% of 137 decks
+23% synergy
Geier Reach Sanitarium
24% of 137 decks
+21% synergy
Tomb of the Spirit Dragon
23% of 137 decks
+22% synergy
Eldrazi Temple
23% of 137 decks
+22% synergy
Fountainport
21% of 56 decks
+20% synergy
Karn's Bastion
21% of 137 decks
+16% synergy
Arcane Lighthouse
20% of 137 decks
+19% synergy
City of Traitors
20% of 137 decks
+19% synergy
Field of the Dead
20% of 137 decks
+16% synergy
Eye of Ugin
18% of 137 decks
+17% synergy
Blasted Landscape
17% of 137 decks
+16% synergy
Temple of the False God
17% of 137 decks
+7% synergy
Sea Gate Wreckage
16% of 137 decks
+16% synergy
Ominous Cemetery
14% of 100 decks
+14% synergy
Mage-Ring Network
14% of 137 decks
+13% synergy
Mana Artifacts
Sol Ring
96% of 137 decks
+11% synergy
Thran Dynamo
78% of 137 decks
+73% synergy
Everflowing Chalice
67% of 137 decks
+63% synergy
Mox Opal
66% of 137 decks
+61% synergy
Mana Crypt
53% of 137 decks
+47% synergy
Thought Vessel
53% of 137 decks
+36% synergy
Liquimetal Torque
40% of 137 decks
+37% synergy
Sonic Screwdriver
32% of 100 decks
+31% synergy
The Mightstone and Weakstone
26% of 137 decks
+26% synergy
Blinkmoth Urn
23% of 137 decks
+23% synergy
Worn Powerstone
23% of 137 decks
+20% synergy
Gilded Lotus
23% of 137 decks
+19% synergy
Chromatic Orrery
15% of 137 decks
+13% synergy
Fellwar Stone
13% of 137 decks
-8% synergy
Staff of Compleation
12% of 137 decks
+11% synergy
Coveted Jewel
10% of 137 decks
+9% synergy
Arcane Signet
10% of 137 decks
-62% synergy
Sol Talisman
8% of 137 decks
+7% synergy
Skyclave Relic
7% of 137 decks
+6% synergy
Empowered Autogenerator
7% of 137 decks
+6% synergy
Mox Tantalite
6% of 137 decks
+5% synergy
Patriar's Seal
6% of 137 decks
+4% synergy
Slagstone Refinery
5% of 137 decks
+5% synergy
Fractured Powerstone
5% of 137 decks
+5% synergy
Lands
Volcanic Island
100% of 3 decks
+86% synergy
Steam Vents
100% of 3 decks
+62% synergy
The Mycosynth Gardens
64% of 137 decks
+62% synergy
Urza's Cave
57% of 69 decks
+54% synergy
Planar Nexus
43% of 69 decks
+43% synergy
Cavern of Souls
28% of 137 decks
+21% synergy
Gemstone Caverns
26% of 137 decks
+21% synergy
Talon Gates of Madara
25% of 64 decks
+23% synergy
Hall of Tagsin
23% of 137 decks
+23% synergy
Crystal Grotto
16% of 137 decks
+15% synergy
Abstergo Entertainment
13% of 60 decks
+13% synergy
Demolition Field
13% of 137 decks
+10% synergy
Plaza of Heroes
12% of 137 decks
+9% synergy
Power Depot
10% of 137 decks
+10% synergy
Mirrex
10% of 137 decks
+9% synergy
The Grey Havens
9% of 122 decks
+8% synergy
Gallifrey Council Chamber
8% of 100 decks
+8% synergy
Command Tower
7% of 137 decks
-68% synergy
Scene of the Crime
6% of 85 decks
+5% synergy