Training Grounds + Grim Monolith + Karn, Silver Golem

Training Grounds
Grim Monolith
Karn, Silver Golem

Requires
Training Grounds must be on the battlefield. Grim Monolith must be on the battlefield. Karn, Silver Golem must be on the battlefield. Grim Monolith does not have summoning sickness.
Steps
  1. Activate Grim Monolith's first ability by tapping it, adding .
  2. Activate Karn by paying 1, causing Grim Monolith to become an artifact creature until end of turn.
  3. Activate Grim Monolith's last ability by paying 2, untapping it.
  4. Repeat step 1 and 3.
Results
Infinite colorless mana.

Urza, Lord High Artificer
0.06% of 12657 decks 8 decks
Memnarch
0.54% of 1469 decks 8 decks
Oona, Queen of the Fae
0.16% of 1884 decks 3 decks
Muzzio, Visionary Architect
0.57% of 524 decks 3 decks
Kinnan, Bonder Prodigy
0.02% of 12009 decks 2 decks
Barrin, Master Wizard
0.65% of 153 decks 1 decks
Ravos, Soultender // Thrasios, Triton Hero
0.25% of 398 decks 1 decks
Ishai, Ojutai Dragonspeaker // Thrasios, Triton Hero
0.32% of 317 decks 1 decks
Sydri, Galvanic Genius
0.05% of 2180 decks 1 decks
Lord of the Nazgûl
0.01% of 10376 decks 1 decks
Urza, Prince of Kroog
0.04% of 2658 decks 1 decks
Emry, Lurker of the Loch
0.02% of 4198 decks 1 decks
Katsumasa, the Animator
0.32% of 312 decks 1 decks
Thrasios, Triton Hero // Tymna the Weaver
0.02% of 5622 decks 1 decks
Tasigur, the Golden Fang
0.02% of 5816 decks 1 decks
Kenrith, the Returned King
0.00% of 21513 decks 1 decks
High Synergy Cards
Biomancer's Familiar
86% of 7 decks +83% synergy
Forensic Gadgeteer
71% of 7 decks +68% synergy
Enlightened Tutor
83% of 6 decks +66% synergy
Urza's Saga
69% of 32 decks +62% synergy
Rings of Brighthearth
60% of 35 decks +58% synergy
Fabricate
63% of 35 decks +57% synergy
Academy Ruins
60% of 35 decks +55% synergy
Mycosynth Lattice
51% of 35 decks +51% synergy
Seedborn Muse
57% of 7 decks +49% synergy
Inventors' Fair
50% of 34 decks +46% synergy
Top Cards
Basalt Monolith
80% of 35 decks +77% synergy
Mana Vault
71% of 35 decks +65% synergy
Swords to Plowshares
67% of 6 decks +4% synergy
Birds of Paradise
57% of 7 decks +30% synergy
Cyclonic Rift
57% of 35 decks +29% synergy
Counterspell
57% of 35 decks +14% synergy
Rhystic Study
54% of 35 decks +26% synergy
The One Ring
53% of 17 decks +44% synergy
Dramatic Reversal
50% of 34 decks +45% synergy
Mox Opal
49% of 35 decks +44% synergy
Creatures
Etherium Sculptor
43% of 35 decks +37% synergy
Bloom Tender
43% of 7 decks +35% synergy
Emry, Lurker of the Loch
39% of 33 decks +35% synergy
Metalworker
37% of 35 decks +37% synergy
Phyrexian Metamorph
37% of 35 decks +30% synergy
Voltaic Construct
34% of 35 decks +34% synergy
Blightsteel Colossus
31% of 35 decks +30% synergy
Trinket Mage
31% of 35 decks +29% synergy
Sai, Master Thopterist
30% of 33 decks +27% synergy
Walking Ballista
29% of 34 decks +27% synergy
Pili-Pala
29% of 35 decks +28% synergy
Master Transmuter
29% of 35 decks +27% synergy
Spellskite
29% of 35 decks +25% synergy
Thought Monitor
28% of 32 decks +25% synergy
Urza, Lord High Artificer
27% of 33 decks +24% synergy
Karn, Legacy Reforged
27% of 15 decks +26% synergy
Trophy Mage
26% of 34 decks +25% synergy
Padeem, Consul of Innovation
26% of 34 decks +23% synergy
Foundry Inspector
26% of 34 decks +22% synergy
Grand Architect
26% of 35 decks +25% synergy
Vedalken Archmage
26% of 35 decks +24% synergy
Myr Retriever
23% of 35 decks +21% synergy
Jin-Gitaxias, Progress Tyrant
23% of 31 decks +20% synergy
Arcum Dagsson
20% of 35 decks +19% synergy
The Reality Chip
19% of 31 decks +15% synergy
Liberator, Urza's Battlethopter
17% of 23 decks +16% synergy
Displacer Kitten
17% of 23 decks +12% synergy
Treasure Mage
17% of 35 decks +17% synergy
Palladium Myr
17% of 35 decks +15% synergy
Faerie Mastermind
17% of 18 decks +9% synergy
Cyberdrive Awakener
16% of 31 decks +14% synergy
Hullbreaker Horror
16% of 31 decks +9% synergy
Mycosynth Golem
14% of 35 decks +14% synergy
Kuldotha Forgemaster
14% of 35 decks +13% synergy
Gilded Drake
14% of 35 decks +12% synergy
Deadeye Navigator
14% of 35 decks +12% synergy
Consecrated Sphinx
14% of 35 decks +9% synergy
Solemn Simulacrum
14% of 35 decks +0% synergy
Agent of Treachery
12% of 33 decks +10% synergy
Tribute Mage
12% of 33 decks +10% synergy
Thassa's Oracle
12% of 33 decks +5% synergy
Clever Impersonator
12% of 34 decks +9% synergy
Palinchron
11% of 35 decks +11% synergy
Darksteel Colossus
11% of 35 decks +11% synergy
Memnarch
11% of 35 decks +11% synergy
Vedalken Engineer
11% of 35 decks +11% synergy
Master of Etherium
11% of 35 decks +10% synergy
Wurmcoil Engine
11% of 35 decks +10% synergy
Myr Battlesphere
11% of 35 decks +9% synergy
Silver Myr
11% of 35 decks +9% synergy
Instants
Mana Drain
60% of 35 decks +45% synergy
Vampiric Tutor
56% of 9 decks +37% synergy
Force of Will
51% of 35 decks +40% synergy
Fierce Guardianship
48% of 33 decks +30% synergy
Force of Negation
36% of 33 decks +27% synergy
Whir of Invention
35% of 34 decks +32% synergy
Swan Song
35% of 34 decks +19% synergy
Dark Ritual
33% of 9 decks +11% synergy
Mystical Tutor
31% of 35 decks +16% synergy
Brainstorm
26% of 35 decks +4% synergy
Cryptic Command
23% of 35 decks +21% synergy
Pact of Negation
20% of 35 decks +13% synergy
Archmage's Charm
18% of 33 decks +17% synergy
Capsize
17% of 35 decks +16% synergy
Negate
17% of 35 decks -6% synergy
An Offer You Can't Refuse
15% of 26 decks -5% synergy
Blue Sun's Zenith
14% of 35 decks +11% synergy
High Tide
14% of 35 decks +10% synergy
Flusterstorm
14% of 35 decks +7% synergy
March of Swirling Mist
13% of 31 decks +9% synergy
Narset's Reversal
12% of 33 decks +8% synergy
Intuition
11% of 35 decks +10% synergy
Hurkyl's Recall
9% of 35 decks +8% synergy
Long-Term Plans
9% of 35 decks +8% synergy
Muddle the Mixture
9% of 35 decks +3% synergy
Pongify
9% of 35 decks -3% synergy
Arcane Denial
9% of 35 decks -11% synergy
Sorceries
Demonic Tutor
56% of 9 decks +33% synergy
Imperial Seal
33% of 9 decks +28% synergy
Damnation
33% of 9 decks +25% synergy
Toxic Deluge
33% of 9 decks +16% synergy
Transmute Artifact
26% of 35 decks +25% synergy
Thoughtcast
26% of 35 decks +22% synergy
Reshape
23% of 35 decks +21% synergy
Merchant Scroll
20% of 35 decks +18% synergy
Ponder
20% of 35 decks +7% synergy
Rise and Shine
19% of 32 decks +17% synergy
Preordain
11% of 35 decks +0% synergy
Windfall
11% of 35 decks -2% synergy
Argivian Restoration
9% of 35 decks +8% synergy
All Is Dust
9% of 35 decks +7% synergy
Rite of Replication
9% of 35 decks +5% synergy
Utility Artifacts
Unwinding Clock
46% of 35 decks +43% synergy
Voltaic Key
43% of 35 decks +42% synergy
Sensei's Divining Top
43% of 35 decks +37% synergy
Darksteel Forge
40% of 35 decks +39% synergy
Isochron Scepter
40% of 35 decks +38% synergy
Mystic Forge
39% of 33 decks +36% synergy
Manifold Key
36% of 33 decks +35% synergy
Lightning Greaves
34% of 35 decks +9% synergy
Staff of Domination
29% of 35 decks +27% synergy
Sculpting Steel
29% of 35 decks +26% synergy
The Enigma Jewel
27% of 11 decks +26% synergy
Clock of Omens
26% of 35 decks +25% synergy
Heartstone
23% of 35 decks +22% synergy
Liquimetal Coating
23% of 35 decks +22% synergy
Cloud Key
23% of 35 decks +21% synergy
Swiftfoot Boots
23% of 35 decks -5% synergy
Lithoform Engine
21% of 33 decks +20% synergy
Forsaken Monument
21% of 33 decks +19% synergy
Nevinyrral's Disk
20% of 35 decks +19% synergy
Skullclamp
17% of 35 decks +5% synergy
Moonsilver Key
16% of 31 decks +15% synergy
Aetherflux Reservoir
15% of 34 decks +11% synergy
Urza's Bauble
14% of 35 decks +14% synergy
Mirrorworks
14% of 35 decks +14% synergy
Tormod's Crypt
14% of 35 decks +13% synergy
Illusionist's Bracers
14% of 35 decks +13% synergy
Mishra's Bauble
14% of 35 decks +13% synergy
Elixir of Immortality
14% of 35 decks +13% synergy
Thousand-Year Elixir
14% of 35 decks +12% synergy
Sapphire Medallion
14% of 35 decks +12% synergy
Nettlecyst
12% of 32 decks +11% synergy
Mirage Mirror
12% of 34 decks +10% synergy
Welding Jar
11% of 35 decks +11% synergy
Doubling Cube
11% of 35 decks +11% synergy
Winter Orb
11% of 35 decks +11% synergy
Umbral Mantle
11% of 35 decks +11% synergy
The Blackstaff of Waterdeep
10% of 31 decks +10% synergy
Planar Bridge
9% of 34 decks +8% synergy
Ring of Three Wishes
9% of 35 decks +8% synergy
Staff of Nin
9% of 35 decks +8% synergy
Nim Deathmantle
9% of 35 decks +8% synergy
Spine of Ish Sah
9% of 35 decks +8% synergy
Krark-Clan Ironworks
9% of 35 decks +7% synergy
Vedalken Orrery
9% of 35 decks +7% synergy
Aether Spellbomb
9% of 35 decks +7% synergy
Scroll Rack
9% of 35 decks +7% synergy
Howling Mine
9% of 35 decks +6% synergy
Expedition Map
9% of 35 decks +5% synergy
Ashnod's Altar
9% of 35 decks +1% synergy
Enchantments
Power Artifact
34% of 35 decks +34% synergy
Mystic Remora
34% of 35 decks +16% synergy
Copy Artifact
23% of 35 decks +22% synergy
Artificer Class
13% of 23 decks +12% synergy
Efficient Construction
12% of 34 decks +11% synergy
Mechanized Production
12% of 34 decks +9% synergy
Propaganda
11% of 35 decks -0% synergy
The Antiquities War
9% of 33 decks +9% synergy
Mirrodin Besieged
9% of 33 decks +7% synergy
Thopter Spy Network
9% of 34 decks +5% synergy
Back to Basics
9% of 35 decks +8% synergy
Freed from the Real
9% of 35 decks +6% synergy
Planeswalkers
Tezzeret the Seeker
46% of 35 decks +43% synergy
Karn, the Great Creator
30% of 33 decks +29% synergy
Tezzeret, Betrayer of Flesh
19% of 31 decks +18% synergy
Ugin, the Ineffable
15% of 33 decks +13% synergy
Narset, Parter of Veils
15% of 33 decks +10% synergy
Tezzeret, Artifice Master
12% of 33 decks +11% synergy
Karn, Scion of Urza
9% of 33 decks +9% synergy
Utility Lands
Seat of the Synod
51% of 35 decks +45% synergy
Darksteel Citadel
49% of 35 decks +45% synergy
Ancient Tomb
49% of 35 decks +38% synergy
Boseiju, Who Endures
43% of 7 decks +23% synergy
Reliquary Tower
34% of 35 decks +5% synergy
Cabal Coffers
33% of 9 decks +22% synergy
Bojuka Bog
33% of 9 decks +3% synergy
Otawara, Soaring City
32% of 31 decks +15% synergy
Tolaria West
29% of 35 decks +27% synergy
Urza's Power Plant
23% of 35 decks +21% synergy
Urza's Mine
23% of 35 decks +21% synergy
Urza's Tower
23% of 35 decks +21% synergy
Buried Ruin
23% of 35 decks +18% synergy
Urza's Workshop
22% of 23 decks +21% synergy
Mystic Sanctuary
18% of 33 decks +6% synergy
Crystal Vein
17% of 35 decks +16% synergy
Treasure Vault
16% of 31 decks +14% synergy
Castle Vantress
15% of 33 decks +11% synergy
Mishra's Workshop
14% of 35 decks +14% synergy
Urborg, Tomb of Yawgmoth
14% of 35 decks +4% synergy
Urza's Factory
11% of 35 decks +11% synergy
Oboro, Palace in the Clouds
11% of 35 decks +11% synergy
Thespian's Stage
11% of 35 decks +9% synergy
Strip Mine
11% of 35 decks +8% synergy
Minamo, School at Water's Edge
11% of 35 decks +7% synergy
Temple of the False God
11% of 35 decks +2% synergy
Arcane Lighthouse
9% of 34 decks +7% synergy
Halimar Depths
9% of 35 decks +5% synergy
Mana Artifacts
Sol Ring
94% of 35 decks +10% synergy
Arcane Signet
67% of 33 decks -5% synergy
Azorius Signet
50% of 6 decks +24% synergy
Mana Crypt
49% of 35 decks +40% synergy
Thran Dynamo
46% of 35 decks +41% synergy
Simic Signet
43% of 7 decks +28% synergy
Gilded Lotus
40% of 35 decks +37% synergy
Jeweled Lotus
34% of 32 decks +28% synergy
Everflowing Chalice
34% of 35 decks +30% synergy
Dimir Signet
33% of 9 decks +4% synergy
Lotus Petal
31% of 35 decks +25% synergy
Liquimetal Torque
31% of 32 decks +28% synergy
Chrome Mox
29% of 35 decks +22% synergy
Fellwar Stone
29% of 35 decks +7% synergy
Mind Stone
23% of 35 decks +5% synergy
Mox Amber
18% of 33 decks +14% synergy
Thought Vessel
18% of 34 decks +1% synergy
Caged Sun
17% of 35 decks +15% synergy
Chromatic Orrery
15% of 33 decks +14% synergy
Extraplanar Lens
14% of 35 decks +13% synergy
Worn Powerstone
14% of 35 decks +12% synergy
Mox Diamond
14% of 35 decks +10% synergy
Commander's Sphere
9% of 34 decks -7% synergy
Gemstone Array
9% of 35 decks +8% synergy
Sky Diamond
9% of 35 decks +3% synergy
Lands
Hallowed Fountain
67% of 6 decks +26% synergy
Breeding Pool
57% of 7 decks +16% synergy
Drowned Catacomb
44% of 9 decks +19% synergy
Watery Grave
44% of 9 decks +4% synergy
Simic Growth Chamber
43% of 7 decks +23% synergy
Mistvault Bridge
38% of 8 decks +33% synergy
Morphic Pool
38% of 8 decks +11% synergy
Command Tower
31% of 35 decks -42% synergy
Polluted Delta
23% of 35 decks +12% synergy
The Mycosynth Gardens
21% of 19 decks +19% synergy
Flooded Strand
20% of 35 decks +9% synergy
Prismatic Vista
12% of 33 decks +7% synergy
Windswept Heath
11% of 35 decks +1% synergy
Scalding Tarn
11% of 35 decks +0% synergy
Misty Rainforest
11% of 35 decks -0% synergy
Exotic Orchard
11% of 35 decks -24% synergy