Basalt Monolith + Karn, Silver Golem + Agatha of the Vile Cauldron

Basalt Monolith
Karn, Silver Golem
Agatha of the Vile Cauldron

Requires
Basalt Monolith must be on the battlefield. Karn, Silver Golem must be on the battlefield. Agatha of the Vile Cauldron must be on the battlefield. Basalt Monolith does not have summoning sickness. Agatha of the Vile Cauldron has power 1 or greater.
Steps
  1. Activate Basalt Monolith's first ability by tapping it, adding .
  2. Activate Karn by paying 1, causing Basalt Monolith to become a 3/3 artifact creature until end of turn.
  3. Activate Basalt Monolith's second ability by paying at most 2, untapping it.
  4. Activate Basalt Monolith's first ability by tapping it, adding .
  5. Repeat from step 3.
Results
Infinite colorless mana.

Agatha of the Vile Cauldron
0.13% of 3825 decks 5 decks
Ramos, Dragon Engine
0.01% of 8606 decks 1 decks
Jodah, Archmage Eternal
0.01% of 8114 decks 1 decks
High Synergy Cards
Staff of Domination
86% of 7 decks +84% synergy
Karn, the Great Creator
71% of 7 decks +70% synergy
Agatha's Soul Cauldron
71% of 7 decks +70% synergy
Alloy Animist
57% of 7 decks +57% synergy
Voltaic Construct
57% of 7 decks +57% synergy
Planar Bridge
57% of 7 decks +57% synergy
Magus of the Candelabra
57% of 7 decks +56% synergy
Mycosynth Lattice
57% of 7 decks +56% synergy
Clock of Omens
57% of 7 decks +56% synergy
Heroic Intervention
57% of 7 decks +28% synergy
Top Cards
Chromatic Orrery
57% of 7 decks +56% synergy
Grim Monolith
57% of 7 decks +55% synergy
Creatures
Bello, Bard of the Brambles
100% of 1 decks +97% synergy
Argivian Archaeologist
50% of 2 decks +50% synergy
Filigree Sages
50% of 2 decks +50% synergy
Auriok Salvagers
50% of 2 decks +50% synergy
Sydri, Galvanic Genius
50% of 2 decks +50% synergy
Corridor Monitor
50% of 2 decks +50% synergy
Chief Engineer
50% of 2 decks +49% synergy
Arcum Dagsson
50% of 2 decks +49% synergy
Grand Architect
50% of 2 decks +49% synergy
Yurlok of Scorch Thrash
50% of 2 decks +49% synergy
Karador, Ghost Chieftain
50% of 2 decks +49% synergy
Master Transmuter
50% of 2 decks +48% synergy
Eidolon of Rhetoric
50% of 2 decks +48% synergy
Sharuum the Hegemon
50% of 2 decks +48% synergy
Archon of Emeria
50% of 2 decks +47% synergy
Urza, Lord High Artificer
50% of 2 decks +47% synergy
Lavinia, Azorius Renegade
50% of 2 decks +47% synergy
Kinnan, Bonder Prodigy
50% of 2 decks +46% synergy
Emry, Lurker of the Loch
50% of 2 decks +46% synergy
Displacer Kitten
50% of 2 decks +44% synergy
Drannith Magistrate
50% of 2 decks +43% synergy
Phyrexian Metamorph
50% of 2 decks +43% synergy
Lotho, Corrupt Shirriff
50% of 2 decks +35% synergy
Esper Sentinel
50% of 2 decks +29% synergy
Cogwork Assembler
43% of 7 decks +43% synergy
Elder of Laurels
43% of 7 decks +43% synergy
Frontier Guide
43% of 7 decks +43% synergy
Captivating Crew
43% of 7 decks +41% synergy
Kami of Whispered Hopes
43% of 7 decks +35% synergy
Beast Whisperer
43% of 7 decks +31% synergy
Bighorner Rancher
33% of 3 decks +32% synergy
Generous Plunderer
33% of 3 decks +31% synergy
Bristly Bill, Spine Sower
33% of 3 decks +29% synergy
Fanatic of Rhonas
33% of 3 decks +24% synergy
Toymaker
29% of 7 decks +29% synergy
Crossroads Candleguide
29% of 7 decks +29% synergy
Silvanus's Invoker
29% of 7 decks +28% synergy
Wildheart Invoker
29% of 7 decks +28% synergy
Myr Welder
29% of 7 decks +28% synergy
Metalworker
29% of 7 decks +28% synergy
Leafkin Avenger
29% of 7 decks +28% synergy
Shaman of Forgotten Ways
29% of 7 decks +28% synergy
Karn, Legacy Reforged
29% of 7 decks +28% synergy
Tough Cookie
29% of 7 decks +28% synergy
Svella, Ice Shaper
29% of 7 decks +27% synergy
Seedborn Muse
29% of 7 decks +20% synergy
Birds of Paradise
29% of 7 decks +2% synergy
Innocuous Researcher
25% of 4 decks +25% synergy
Anzrag, the Quake-Mole
25% of 4 decks +22% synergy
Dan Lewis
20% of 5 decks +20% synergy
Instants
Enlightened Tutor
100% of 2 decks +82% synergy
Paradoxical Outcome
50% of 2 decks +49% synergy
Whir of Invention
50% of 2 decks +47% synergy
Vampiric Tutor
50% of 2 decks +32% synergy
Worldly Tutor
29% of 7 decks +14% synergy
Beast Within
29% of 7 decks -10% synergy
Archdruid's Charm
25% of 4 decks +18% synergy
Tawnos's Tinkering
14% of 7 decks +14% synergy
Ruinous Intrusion
14% of 7 decks +13% synergy
Invigorating Surge
14% of 7 decks +13% synergy
Silkguard
14% of 7 decks +12% synergy
Inscription of Abundance
14% of 7 decks +12% synergy
Gaea's Gift
14% of 7 decks +11% synergy
Snakeskin Veil
14% of 7 decks +10% synergy
Noxious Revival
14% of 7 decks +9% synergy
Red Elemental Blast
14% of 7 decks +8% synergy
Inspiring Call
14% of 7 decks +7% synergy
Entish Restoration
14% of 7 decks +6% synergy
Thrill of Possibility
14% of 7 decks +4% synergy
Deflecting Swat
14% of 7 decks -2% synergy
Chaos Warp
14% of 7 decks -18% synergy
Sorceries
Demonic Tutor
100% of 2 decks +78% synergy
Transmute Artifact
50% of 2 decks +49% synergy
Yawgmoth's Will
50% of 2 decks +49% synergy
Reshape
50% of 2 decks +48% synergy
Imperial Seal
50% of 2 decks +44% synergy
Fabricate
50% of 2 decks +44% synergy
Harmonize
43% of 7 decks +34% synergy
Vandalblast
43% of 7 decks +27% synergy
Cultivate
43% of 7 decks -4% synergy
Sylvan Tutor
29% of 7 decks +28% synergy
Rishkar's Expertise
29% of 7 decks +18% synergy
Three Visits
29% of 7 decks +4% synergy
Kodama's Reach
29% of 7 decks -3% synergy
Nature's Lore
29% of 7 decks -3% synergy
Blasphemous Act
29% of 7 decks -5% synergy
Witch's Mark
20% of 5 decks +18% synergy
Saheeli's Directive
14% of 7 decks +14% synergy
Trash for Treasure
14% of 7 decks +13% synergy
Reckless Handling
14% of 7 decks +12% synergy
Chain Reaction
14% of 7 decks +9% synergy
Bala Ged Recovery
14% of 7 decks +5% synergy
Shamanic Revelation
14% of 7 decks +5% synergy
Gamble
14% of 7 decks +4% synergy
Faithless Looting
14% of 7 decks -3% synergy
Jeska's Will
14% of 7 decks -3% synergy
Farseek
14% of 7 decks -20% synergy
Rampant Growth
14% of 7 decks -20% synergy
Utility Artifacts
Legacy Weapon
50% of 2 decks +49% synergy
Encroaching Mycosynth
50% of 2 decks +49% synergy
Simulacrum Synthesizer
50% of 2 decks +48% synergy
Door to Nothingness
50% of 2 decks +46% synergy
Planar Portal
43% of 7 decks +43% synergy
Thousand-Year Elixir
43% of 7 decks +41% synergy
Unwinding Clock
43% of 7 decks +40% synergy
Ozolith, the Shattered Spire
43% of 7 decks +37% synergy
Floodwater Dam
29% of 7 decks +29% synergy
Tower of Fortunes
29% of 7 decks +29% synergy
Diviner's Wand
29% of 7 decks +28% synergy
Magistrate's Scepter
29% of 7 decks +28% synergy
Sword of the Paruns
29% of 7 decks +28% synergy
Belt of Giant Strength
29% of 7 decks +28% synergy
Semblance Anvil
29% of 7 decks +28% synergy
Voltaic Key
29% of 7 decks +28% synergy
Umbral Mantle
29% of 7 decks +28% synergy
Darksteel Forge
29% of 7 decks +27% synergy
Moonsilver Key
29% of 7 decks +27% synergy
Manifold Key
29% of 7 decks +27% synergy
Rings of Brighthearth
29% of 7 decks +27% synergy
Mystic Forge
29% of 7 decks +26% synergy
Blackblade Reforged
29% of 7 decks +24% synergy
Swashbuckler's Whip
20% of 5 decks +20% synergy
Eye of Ojer Taq
20% of 5 decks +20% synergy
Tower of Champions
14% of 7 decks +14% synergy
Tower of Murmurs
14% of 7 decks +14% synergy
Aladdin's Ring
14% of 7 decks +14% synergy
Whetwheel
14% of 7 decks +14% synergy
Mishra's Helix
14% of 7 decks +14% synergy
Tower of Calamities
14% of 7 decks +14% synergy
Tower of Eons
14% of 7 decks +14% synergy
Aladdin's Lamp
14% of 7 decks +14% synergy
Temporal Aperture
14% of 7 decks +14% synergy
Eon Hub
14% of 7 decks +14% synergy
Thran Forge
14% of 7 decks +14% synergy
Kill Switch
14% of 7 decks +14% synergy
Power Matrix
14% of 7 decks +14% synergy
Avarice Totem
14% of 7 decks +14% synergy
Snake Basket
14% of 7 decks +14% synergy
Citanul Flute
14% of 7 decks +14% synergy
Candelabra of Tawnos
14% of 7 decks +14% synergy
That Which Was Taken
14% of 7 decks +14% synergy
Void Mirror
14% of 7 decks +14% synergy
Ashnod's Transmogrant
14% of 7 decks +14% synergy
Sword of the Chosen
14% of 7 decks +14% synergy
Manascape Refractor
14% of 7 decks +14% synergy
Bag of Tricks
14% of 7 decks +14% synergy
Vivien's Arkbow
14% of 7 decks +14% synergy
Omen Machine
14% of 7 decks +14% synergy
Enchantments
Shared Fate
50% of 2 decks +50% synergy
Artificer's Intuition
50% of 2 decks +50% synergy
March of the Machines
50% of 2 decks +50% synergy
Power Artifact
50% of 2 decks +50% synergy
Arcane Laboratory
50% of 2 decks +50% synergy
Mind Over Matter
50% of 2 decks +50% synergy
Stasis
50% of 2 decks +50% synergy
Stony Silence
50% of 2 decks +49% synergy
Rule of Law
50% of 2 decks +48% synergy
Freed from the Real
50% of 2 decks +48% synergy
Jeskai Ascendancy
50% of 2 decks +44% synergy
Smothering Tithe
50% of 2 decks +25% synergy
Court of Garenbrig
40% of 5 decks +36% synergy
Guardian Project
29% of 7 decks +20% synergy
Bigger on the Inside
20% of 5 decks +18% synergy
Awaken the Ancient
14% of 7 decks +14% synergy
Crackling Emergence
14% of 7 decks +14% synergy
Bludgeon Brawl
14% of 7 decks +14% synergy
Careful Cultivation
14% of 7 decks +14% synergy
Blighted Burgeoning
14% of 7 decks +14% synergy
Awakening
14% of 7 decks +14% synergy
Nature's Chosen
14% of 7 decks +14% synergy
Raised by Giants
14% of 7 decks +13% synergy
Helix Pinnacle
14% of 7 decks +13% synergy
Fervor
14% of 7 decks +13% synergy
Mana Reflection
14% of 7 decks +12% synergy
Concordant Crossroads
14% of 7 decks +12% synergy
Rancor
14% of 7 decks +9% synergy
Rising of the Day
14% of 7 decks +8% synergy
Tribute to the World Tree
14% of 7 decks +6% synergy
Hardened Scales
14% of 7 decks +5% synergy
Sylvan Library
14% of 7 decks +2% synergy
Rhythm of the Wild
14% of 7 decks -9% synergy
Planeswalkers
Tezzeret, Agent of Bolas
50% of 2 decks +50% synergy
Tezzeret, Master of the Bridge
50% of 2 decks +47% synergy
Tezzeret the Seeker
50% of 2 decks +47% synergy
Teferi, Time Raveler
50% of 2 decks +43% synergy
Daretti, Scrap Savant
14% of 7 decks +12% synergy
Utility Lands
Academy Ruins
50% of 2 decks +45% synergy
Otawara, Soaring City
50% of 2 decks +33% synergy
Inventors' Fair
43% of 7 decks +39% synergy
Urza's Saga
43% of 7 decks +36% synergy
Ancient Tomb
43% of 7 decks +32% synergy
Forge of Heroes
29% of 7 decks +28% synergy
Llanowar Reborn
29% of 7 decks +27% synergy
Oran-Rief, the Vastwood
29% of 7 decks +24% synergy
Yavimaya, Cradle of Growth
29% of 7 decks +19% synergy
Kessig Wolf Run
29% of 7 decks +13% synergy
Scorched Ruins
14% of 7 decks +14% synergy
Dormant Volcano
14% of 7 decks +14% synergy
Mishra's Workshop
14% of 7 decks +14% synergy
Deserted Temple
14% of 7 decks +14% synergy
Maze's End
14% of 7 decks +14% synergy
Okina, Temple to the Grandfathers
14% of 7 decks +14% synergy
Jungle Basin
14% of 7 decks +14% synergy
Baldur's Gate
14% of 7 decks +13% synergy
Urza's Workshop
14% of 7 decks +13% synergy
Urza's Power Plant
14% of 7 decks +12% synergy
Urza's Mine
14% of 7 decks +12% synergy
Urza's Tower
14% of 7 decks +12% synergy
Tyrite Sanctum
14% of 7 decks +12% synergy
Treasure Vault
14% of 7 decks +12% synergy
Thespian's Stage
14% of 7 decks +12% synergy
Castle Garenbrig
14% of 7 decks +9% synergy
Boseiju, Who Endures
14% of 7 decks -5% synergy
Mana Artifacts
Sol Ring
100% of 7 decks +16% synergy
Arcane Signet
71% of 7 decks -1% synergy
Timeless Lotus
50% of 2 decks +36% synergy
Empowered Autogenerator
29% of 7 decks +28% synergy
Mana Vault
29% of 7 decks +22% synergy
Chromatic Lantern
29% of 7 decks +19% synergy
The Mana Rig
14% of 7 decks +14% synergy
Gemstone Array
14% of 7 decks +14% synergy
Thran Turbine
14% of 7 decks +14% synergy
Wizard's Rockets
14% of 7 decks +14% synergy
The Mightstone and Weakstone
14% of 7 decks +13% synergy
Nyx Lotus
14% of 7 decks +13% synergy
Lion's Eye Diamond
14% of 7 decks +13% synergy
Gilded Lotus
14% of 7 decks +11% synergy
Liquimetal Torque
14% of 7 decks +11% synergy
Mox Diamond
14% of 7 decks +10% synergy
Mox Opal
14% of 7 decks +10% synergy
Thran Dynamo
14% of 7 decks +9% synergy
Cursed Mirror
14% of 7 decks +9% synergy
Lotus Petal
14% of 7 decks +8% synergy
Talisman of Impulse
14% of 7 decks +6% synergy
Mana Crypt
14% of 7 decks +5% synergy
Gruul Signet
14% of 7 decks +2% synergy
Fellwar Stone
14% of 7 decks -7% synergy
Lands
Command Tower
86% of 7 decks +12% synergy
Commercial District
60% of 5 decks +48% synergy
Stomping Ground
57% of 7 decks +16% synergy
Citadel Gate
50% of 2 decks +48% synergy
Black Dragon Gate
50% of 2 decks +48% synergy
Sea Gate
50% of 2 decks +48% synergy
Talon Gates of Madara
50% of 2 decks +46% synergy
Simic Guildgate
50% of 2 decks +44% synergy
Plateau
50% of 2 decks +37% synergy
Savannah
50% of 2 decks +37% synergy
Badlands
50% of 2 decks +36% synergy
Bayou
50% of 2 decks +36% synergy
Scrubland
50% of 2 decks +36% synergy
Volcanic Island
50% of 2 decks +36% synergy
Tundra
50% of 2 decks +36% synergy
Tropical Island
50% of 2 decks +36% synergy
Underground Sea
50% of 2 decks +36% synergy
Raugrin Triome
50% of 2 decks +23% synergy
Savai Triome
50% of 2 decks +23% synergy
Zagoth Triome
50% of 2 decks +19% synergy
Indatha Triome
50% of 2 decks +19% synergy
Ketria Triome
50% of 2 decks +17% synergy
Rockfall Vale
43% of 7 decks +21% synergy
Spire Garden
43% of 7 decks +19% synergy
Cinder Glade
43% of 7 decks +4% synergy
Planar Nexus
33% of 3 decks +32% synergy
Urza's Cave
33% of 3 decks +29% synergy
Gemstone Caverns
29% of 7 decks +24% synergy
Rootbound Crag
29% of 7 decks +5% synergy
Exotic Orchard
29% of 7 decks -7% synergy
Gateway Plaza
14% of 7 decks +13% synergy
Cliffgate
14% of 7 decks +13% synergy
Manor Gate
14% of 7 decks +12% synergy
Opal Palace
14% of 7 decks +12% synergy
Highland Forest
14% of 7 decks +10% synergy
Wooded Ridgeline
14% of 7 decks +8% synergy
Cavern of Souls
14% of 7 decks +7% synergy
Sheltered Thicket
14% of 7 decks +7% synergy
Mana Confluence
14% of 7 decks +7% synergy
City of Brass
14% of 7 decks +6% synergy
Cragcrown Pathway
14% of 7 decks +5% synergy
Fabled Passage
14% of 7 decks +5% synergy
Wooded Foothills
14% of 7 decks +4% synergy
Bloodstained Mire
14% of 7 decks +4% synergy
Windswept Heath
14% of 7 decks +4% synergy
Flooded Strand
14% of 7 decks +4% synergy
Arid Mesa
14% of 7 decks +4% synergy
Mossfire Valley
14% of 7 decks +4% synergy
Scalding Tarn
14% of 7 decks +3% synergy
Polluted Delta
14% of 7 decks +3% synergy