Basalt Monolith + Myr Welder + Agatha of the Vile Cauldron

Basalt Monolith
Myr Welder
Agatha of the Vile Cauldron

Requires
Basalt Monolith must be in exile (exiled by Myr Welder). Myr Welder must be on the battlefield. Agatha of the Vile Cauldron must be on the battlefield.
Steps
  1. Activate Myr Welder using Basalt Monolith's first ability by tapping it, adding .
  2. Activate Myr Welder using Basalt Monolith's second ability by paying at most 2, untapping it.
  3. Repeat.
Results
Infinite colorless mana.

Agatha of the Vile Cauldron
0.10% of 3907 decks 4 decks
Tazri, Stalwart Survivor
0.17% of 1805 decks 3 decks
Kenrith, the Returned King
0.00% of 21514 decks 1 decks
Marath, Will of the Wild
0.04% of 2450 decks 1 decks
The Fifteenth Doctor // Susan Foreman
12.50% of 8 decks 1 decks
Jodah, Archmage Eternal
0.01% of 8054 decks 1 decks
High Synergy Cards
Biomancer's Familiar
67% of 6 decks +64% synergy
Kinnan, Bonder Prodigy
67% of 6 decks +63% synergy
Agatha's Soul Cauldron
64% of 11 decks +62% synergy
Staff of Domination
64% of 11 decks +62% synergy
Umbral Mantle
55% of 11 decks +54% synergy
Illusionist's Bracers
55% of 11 decks +53% synergy
Walking Ballista
55% of 11 decks +52% synergy
Battlemage's Bracers
45% of 11 decks +44% synergy
Svella, Ice Shaper
45% of 11 decks +44% synergy
Incubation Druid
45% of 11 decks +41% synergy
Top Cards
Beast Within
55% of 11 decks +16% synergy
Cultivate
45% of 11 decks -1% synergy
Magus of the Candelabra
36% of 11 decks +36% synergy
Chromatic Orrery
36% of 11 decks +35% synergy
Thousand-Year Elixir
36% of 11 decks +34% synergy
Kami of Whispered Hopes
36% of 11 decks +29% synergy
Vandalblast
36% of 11 decks +20% synergy
Nature's Lore
36% of 11 decks +4% synergy
Chaos Warp
36% of 11 decks +4% synergy
Blasphemous Act
36% of 11 decks +3% synergy
Creatures
Havengul Lich
60% of 5 decks +58% synergy
Zacama, Primal Calamity
50% of 6 decks +41% synergy
Alloy Animist
27% of 11 decks +27% synergy
Frontier Guide
27% of 11 decks +27% synergy
Cryptic Trilobite
27% of 11 decks +27% synergy
Pili-Pala
27% of 11 decks +27% synergy
Hound Tamer
27% of 11 decks +27% synergy
Yisan, the Wanderer Bard
27% of 11 decks +27% synergy
Captivating Crew
27% of 11 decks +26% synergy
Delighted Halfling
27% of 11 decks +13% synergy
Llanowar Elves
27% of 11 decks +6% synergy
Birds of Paradise
27% of 11 decks +0% synergy
Instants
Worldly Tutor
27% of 11 decks +13% synergy
Heroic Intervention
27% of 11 decks -2% synergy
Sorceries
Sylvan Tutor
27% of 11 decks +26% synergy
Gamble
27% of 11 decks +17% synergy
Faithless Looting
27% of 11 decks +11% synergy
Kodama's Reach
27% of 11 decks -4% synergy
Farseek
27% of 11 decks -7% synergy
Utility Artifacts
Diviner's Wand
27% of 11 decks +27% synergy
Planar Bridge
27% of 11 decks +27% synergy
Heartstone
27% of 11 decks +27% synergy
Lithoform Engine
27% of 11 decks +26% synergy
Utility Lands
Mana Artifacts
Arcane Signet
73% of 11 decks +1% synergy
Sol Ring
73% of 11 decks -12% synergy
Chromatic Lantern
36% of 11 decks +27% synergy
Staff of Compleation
27% of 11 decks +26% synergy
Grim Monolith
27% of 11 decks +25% synergy
Mana Vault
27% of 11 decks +21% synergy
Lands
Command Tower
73% of 11 decks -1% synergy
Stomping Ground
64% of 11 decks +22% synergy
Steam Vents
50% of 6 decks +11% synergy
Breeding Pool
50% of 6 decks +9% synergy
Spire Garden
45% of 11 decks +21% synergy
Wooded Foothills
36% of 11 decks +26% synergy
Cinder Glade
36% of 11 decks -2% synergy
Cragcrown Pathway
27% of 11 decks +18% synergy
Scalding Tarn
27% of 11 decks +16% synergy
Misty Rainforest
27% of 11 decks +16% synergy
Evolving Wilds
27% of 11 decks +6% synergy
Path of Ancestry
27% of 11 decks +6% synergy