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 12944 decks 8 decks
Memnarch
0.54% of 1488 decks 8 decks
Muzzio, Visionary Architect
0.57% of 523 decks 3 decks
Oona, Queen of the Fae
0.11% of 1863 decks 2 decks
Kinnan, Bonder Prodigy
0.02% of 12348 decks 2 decks
Katsumasa, the Animator
0.32% of 314 decks 1 decks
Niv-Mizzet, Dracogenius
0.64% of 156 decks 1 decks
Thrasios, Triton Hero // Tymna the Weaver
0.02% of 6019 decks 1 decks
Tasigur, the Golden Fang
0.02% of 5863 decks 1 decks
Sydri, Galvanic Genius
0.05% of 2176 decks 1 decks
Ishai, Ojutai Dragonspeaker // Thrasios, Triton Hero
0.32% of 308 decks 1 decks
Barrin, Master Wizard
0.65% of 154 decks 1 decks
Kenrith, the Returned King
0.00% of 21799 decks 1 decks
Emry, Lurker of the Loch
0.02% of 4240 decks 1 decks
Urza, Prince of Kroog
0.04% of 2482 decks 1 decks
Lord of the Nazgûl
0.01% of 10829 decks 1 decks
Ravos, Soultender // Thrasios, Triton Hero
0.25% of 408 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
67% of 33 decks +60% synergy
Rings of Brighthearth
60% of 35 decks +58% synergy
Academy Ruins
60% of 35 decks +55% synergy
Fabricate
60% of 35 decks +54% 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
74% of 35 decks +68% synergy
Swords to Plowshares
67% of 6 decks +4% synergy
Cyclonic Rift
60% of 35 decks +32% synergy
Birds of Paradise
57% of 7 decks +30% synergy
Counterspell
57% of 35 decks +14% synergy
Rhystic Study
54% of 35 decks +27% synergy
Mox Opal
51% of 35 decks +47% synergy
Dramatic Reversal
50% of 34 decks +45% synergy
The One Ring
50% of 18 decks +41% synergy
Creatures
Etherium Sculptor
43% of 35 decks +37% synergy
Bloom Tender
43% of 7 decks +35% synergy
Metalworker
40% of 35 decks +40% synergy
Emry, Lurker of the Loch
38% of 34 decks +34% 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
Walking Ballista
29% of 34 decks +27% synergy
Sai, Master Thopterist
29% of 34 decks +26% synergy
Pili-Pala
29% of 35 decks +28% synergy
Master Transmuter
29% of 35 decks +27% synergy
Trinket Mage
29% of 35 decks +26% synergy
Spellskite
29% of 35 decks +25% synergy
Thought Monitor
27% of 33 decks +24% synergy
Trophy Mage
26% of 34 decks +25% synergy
Urza, Lord High Artificer
26% of 34 decks +23% 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 +25% synergy
Karn, Legacy Reforged
25% of 16 decks +24% synergy
Myr Retriever
23% of 35 decks +21% synergy
Jin-Gitaxias, Progress Tyrant
22% of 32 decks +19% synergy
Faerie Mastermind
21% of 19 decks +14% synergy
Arcum Dagsson
20% of 35 decks +19% synergy
The Reality Chip
19% of 32 decks +15% synergy
Treasure Mage
17% of 35 decks +17% synergy
Palladium Myr
17% of 35 decks +15% synergy
Liberator, Urza's Battlethopter
17% of 24 decks +15% synergy
Displacer Kitten
17% of 24 decks +11% synergy
Cyberdrive Awakener
16% of 32 decks +13% synergy
Hullbreaker Horror
16% of 32 decks +8% synergy
Palinchron
14% of 35 decks +14% synergy
Memnarch
14% of 35 decks +14% 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
Consecrated Sphinx
14% of 35 decks +9% synergy
Solemn Simulacrum
14% of 35 decks +0% synergy
Agent of Treachery
12% of 34 decks +10% synergy
Tribute Mage
12% of 34 decks +9% synergy
Thassa's Oracle
12% of 34 decks +4% synergy
Darksteel Colossus
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
Deadeye Navigator
11% of 35 decks +9% synergy
Silver Myr
11% of 35 decks +9% synergy
Katsumasa, the Animator
9% of 32 decks +9% synergy
Instants
Mana Drain
60% of 35 decks +45% synergy
Force of Will
51% of 35 decks +40% synergy
Vampiric Tutor
50% of 8 decks +32% synergy
Fierce Guardianship
47% of 34 decks +29% synergy
Dark Ritual
38% of 8 decks +15% synergy
Whir of Invention
35% of 34 decks +32% synergy
Force of Negation
35% of 34 decks +26% synergy
Swan Song
35% of 34 decks +19% synergy
Mystical Tutor
29% of 35 decks +14% synergy
Brainstorm
26% of 35 decks +5% synergy
Capsize
20% of 35 decks +19% synergy
Cryptic Command
20% of 35 decks +18% synergy
Pact of Negation
20% of 35 decks +13% synergy
Negate
20% of 35 decks -3% synergy
Archmage's Charm
18% of 34 decks +16% synergy
Blue Sun's Zenith
17% of 35 decks +14% synergy
High Tide
17% of 35 decks +13% synergy
An Offer You Can't Refuse
15% of 27 decks -6% synergy
Flusterstorm
14% of 35 decks +7% synergy
March of Swirling Mist
12% of 32 decks +9% synergy
Narset's Reversal
12% of 34 decks +8% synergy
Intuition
11% of 35 decks +10% synergy
Muddle the Mixture
11% of 35 decks +6% synergy
Pongify
11% of 35 decks -0% synergy
Dig Through Time
9% of 34 decks +4% synergy
Hurkyl's Recall
9% of 35 decks +8% synergy
Long-Term Plans
9% of 35 decks +8% synergy
Arcane Denial
9% of 35 decks -11% synergy
Sorceries
Demonic Tutor
50% of 8 decks +28% synergy
Imperial Seal
38% of 8 decks +32% synergy
Toxic Deluge
38% of 8 decks +20% 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
18% of 33 decks +17% synergy
Preordain
11% of 35 decks +1% 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
Darksteel Forge
40% of 35 decks +39% synergy
Isochron Scepter
40% of 35 decks +38% synergy
Sensei's Divining Top
40% of 35 decks +35% synergy
Mystic Forge
38% of 34 decks +35% synergy
Manifold Key
35% of 34 decks +34% synergy
Lightning Greaves
31% of 35 decks +6% synergy
Staff of Domination
29% of 35 decks +27% synergy
Sculpting Steel
29% of 35 decks +26% synergy
Clock of Omens
26% of 35 decks +25% synergy
The Enigma Jewel
25% of 12 decks +24% 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 34 decks +19% synergy
Forsaken Monument
21% of 34 decks +19% synergy
Nevinyrral's Disk
20% of 35 decks +19% synergy
Illusionist's Bracers
17% of 35 decks +16% synergy
Skullclamp
17% of 35 decks +5% synergy
Moonsilver Key
16% of 32 decks +14% 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
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
The Blackstaff of Waterdeep
12% of 32 decks +12% synergy
Nettlecyst
12% of 33 decks +10% 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
Sapphire Medallion
11% of 35 decks +9% 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
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
Basilisk Collar
9% of 35 decks +5% 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
12% of 24 decks +11% synergy
Efficient Construction
12% of 34 decks +11% synergy
Mechanized Production
12% of 34 decks +9% synergy
The Antiquities War
9% of 34 decks +8% synergy
Mirrodin Besieged
9% of 34 decks +7% synergy
Thopter Spy Network
9% of 34 decks +5% synergy
Freed from the Real
9% of 35 decks +6% synergy
Propaganda
9% of 35 decks -3% synergy
Planeswalkers
Tezzeret the Seeker
46% of 35 decks +43% synergy
Karn, the Great Creator
32% of 34 decks +31% synergy
Tezzeret, Betrayer of Flesh
22% of 32 decks +21% synergy
Ugin, the Ineffable
15% of 34 decks +13% synergy
Narset, Parter of Veils
15% of 34 decks +10% synergy
Tezzeret, Artifice Master
12% of 34 decks +11% synergy
Karn, Scion of Urza
9% of 34 decks +8% 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
Cabal Coffers
38% of 8 decks +27% synergy
Bojuka Bog
38% of 8 decks +7% synergy
Reliquary Tower
37% of 35 decks +8% synergy
Otawara, Soaring City
31% of 32 decks +14% 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
21% of 24 decks +20% synergy
Mystic Sanctuary
18% of 34 decks +5% synergy
Crystal Vein
17% of 35 decks +16% synergy
Treasure Vault
16% of 32 decks +13% synergy
Castle Vantress
15% of 34 decks +10% synergy
Mishra's Workshop
14% of 35 decks +14% synergy
Minamo, School at Water's Edge
14% of 35 decks +10% synergy
Urborg, Tomb of Yawgmoth
14% of 35 decks +5% 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 +9% 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 +6% synergy
Mana Artifacts
Sol Ring
94% of 35 decks +10% synergy
Arcane Signet
65% of 34 decks -7% 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
Gilded Lotus
43% of 35 decks +39% synergy
Simic Signet
43% of 7 decks +28% synergy
Dimir Signet
38% of 8 decks +8% synergy
Everflowing Chalice
37% of 35 decks +32% synergy
Jeweled Lotus
33% of 33 decks +28% synergy
Lotus Petal
31% of 35 decks +25% synergy
Liquimetal Torque
30% of 33 decks +27% synergy
Chrome Mox
29% of 35 decks +22% synergy
Fellwar Stone
29% of 35 decks +8% synergy
Mind Stone
26% of 35 decks +8% synergy
Thought Vessel
21% of 34 decks +4% synergy
Mox Amber
18% of 34 decks +13% synergy
Caged Sun
17% of 35 decks +15% synergy
Chromatic Orrery
15% of 34 decks +13% 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
Gemstone Array
9% of 35 decks +8% synergy
Darksteel Ingot
9% of 35 decks +7% synergy
Sky Diamond
9% of 35 decks +4% synergy
Chromatic Lantern
9% of 35 decks -1% synergy
Lands
Hallowed Fountain
67% of 6 decks +26% synergy
Breeding Pool
57% of 7 decks +16% synergy
Simic Growth Chamber
43% of 7 decks +23% synergy
Mistvault Bridge
38% of 8 decks +33% synergy
Drowned Catacomb
38% of 8 decks +12% synergy
Morphic Pool
38% of 8 decks +11% synergy
Watery Grave
38% of 8 decks -3% synergy
Command Tower
31% of 35 decks -42% synergy
Polluted Delta
26% of 35 decks +14% synergy
Flooded Strand
23% of 35 decks +12% synergy
The Mycosynth Gardens
20% of 20 decks +18% synergy
Scalding Tarn
14% of 35 decks +3% synergy
Misty Rainforest
14% of 35 decks +3% synergy
Prismatic Vista
12% of 34 decks +6% synergy
Windswept Heath
11% of 35 decks +1% synergy
Exotic Orchard
11% of 35 decks -24% synergy
Wooded Foothills
9% of 35 decks -2% synergy
Bloodstained Mire
9% of 35 decks -2% synergy
Arid Mesa
9% of 35 decks -2% synergy