Prototype Portal + Gonti's Aether Heart + Thopter Assembly + Krark-Clan Ironworks

Prototype Portal
Gonti's Aether Heart
Thopter Assembly
Krark-Clan Ironworks

Requires
Prototype Portal must be on the battlefield. Gonti's Aether Heart must be in exile (exiled by Prototype Portal). Thopter Assembly must be on the battlefield. Krark-Clan Ironworks must be on the battlefield. Mana needed: 6 each turn
Steps
  1. At the beginning of your upkeep, Thopter Assembly triggers.
  2. Holding priority, activate Prototype Portal by paying 6 and tapping it, creating a token copy of Gonti's Aether Heart.
  3. Gonti's Aether Heart enters the battlefield, causing you to get ee.
  4. Resolve the Thopter Assembly trigger, returning it from the battlefield to your hand and creating five 1/1 Thopter artifact creature tokens.
  5. The Thopters enter the battlefield, triggering Gonti's Aether Heart five times, causing you to get ten e.
  6. Activate Krark-Clan Ironworks five times by sacrificing the five Thopters, adding ten .
  7. Cast Thopter Assembly by paying 6.
  8. Thopter Assembly enter the battlefield, triggering Gonti's Aether Heart, causing you to get ee.
  9. Activate Gonti's Aether Heart by paying eight e and exiling it, causing you to take an extra turn after this one.
  10. Repeat each turn.
Results
Infinite turns.

Breya, Etherium Shaper
0.03% of 15159 decks 4 decks
Oviya Pashiri, Sage Lifecrafter
0.46% of 434 decks 2 decks
Iron Man, Titan of Innovation
0.04% of 4633 decks 2 decks
Karn, Silver Golem
0.20% of 1013 decks 2 decks
Morophon, the Boundless
0.01% of 10473 decks 1 decks
Dr. Madison Li
0.02% of 5229 decks 1 decks
Saheeli, the Gifted
0.05% of 1931 decks 1 decks
Oswald Fiddlebender
0.05% of 1867 decks 1 decks
The Peregrine Dynamo
0.15% of 679 decks 1 decks
New Cards
Lumbering Worldwagon
100% of 1 decks +99% synergy
Oviya, Automech Artisan
100% of 1 decks +99% synergy
Pia Nalaar, Chief Mechanic
100% of 1 decks +98% synergy
Saheeli, Radiant Creator
100% of 1 decks +100% synergy
Voyager Quickwelder
33% of 3 decks +32% synergy
High Synergy Cards
Inventors' Fair
87% of 15 decks +83% synergy
Seat of the Synod
89% of 9 decks +83% synergy
Unwinding Clock
80% of 15 decks +77% synergy
Darksteel Citadel
80% of 15 decks +76% synergy
Master Transmuter
78% of 9 decks +76% synergy
Mechanized Production
78% of 9 decks +75% synergy
Great Furnace
78% of 9 decks +72% synergy
Kuldotha Forgemaster
67% of 15 decks +66% synergy
Scrap Trawler
67% of 15 decks +65% synergy
Daretti, Scrap Savant
67% of 9 decks +64% synergy
Top Cards
Mystic Forge
67% of 15 decks +64% synergy
Etherium Sculptor
67% of 9 decks +61% synergy
Clock of Omens
60% of 15 decks +59% synergy
Foundry Inspector
60% of 15 decks +56% synergy
Ashnod's Altar
60% of 15 decks +53% synergy
Whir of Invention
56% of 9 decks +53% synergy
Padeem, Consul of Innovation
56% of 9 decks +52% synergy
Sai, Master Thopterist
56% of 9 decks +52% synergy
Nevinyrral's Disk
53% of 15 decks +52% synergy
Sculpting Steel
53% of 15 decks +51% synergy
Game Changers
Demonic Tutor
60% of 5 decks +39% synergy
Mana Vault
47% of 15 decks +40% synergy
Urza, Lord High Artificer
44% of 9 decks +41% synergy
The One Ring
40% of 15 decks +32% synergy
Ancient Tomb
40% of 15 decks +30% synergy
Cyclonic Rift
33% of 9 decks +7% synergy
Grim Monolith
27% of 15 decks +25% synergy
Creatures
Myr Retriever
47% of 15 decks +45% synergy
Myr Battlesphere
47% of 15 decks +45% synergy
Goblin Welder
44% of 9 decks +42% synergy
Emry, Lurker of the Loch
44% of 9 decks +40% synergy
Enthusiastic Mechanaut
44% of 9 decks +40% synergy
Jhoira, Weatherlight Captain
44% of 9 decks +39% synergy
Metalworker
40% of 15 decks +40% synergy
Blightsteel Colossus
40% of 15 decks +39% synergy
Chief Engineer
33% of 9 decks +33% synergy
Karn, Legacy Reforged
33% of 15 decks +33% synergy
Junk Diver
33% of 15 decks +33% synergy
Liberator, Urza's Battlethopter
33% of 15 decks +32% synergy
Shimmer Myr
33% of 15 decks +32% synergy
Jin-Gitaxias, Progress Tyrant
33% of 9 decks +31% synergy
Goblin Engineer
33% of 9 decks +30% synergy
Hellkite Tyrant
33% of 9 decks +30% synergy
Solemn Simulacrum
33% of 15 decks +20% synergy
Mycosynth Golem
27% of 15 decks +26% synergy
Wurmcoil Engine
27% of 15 decks +25% synergy
Steel Hellkite
27% of 15 decks +25% synergy
Walking Ballista
27% of 15 decks +24% synergy
Dross Scorpion
20% of 15 decks +20% synergy
Daretti, Rocketeer Engineer
20% of 5 decks +20% synergy
Darksteel Colossus
20% of 15 decks +20% synergy
Soul of New Phyrexia
20% of 15 decks +19% synergy
Metalwork Colossus
20% of 15 decks +19% synergy
Platinum Angel
20% of 15 decks +19% synergy
Steel Overseer
20% of 15 decks +18% synergy
Jhoira's Familiar
20% of 15 decks +18% synergy
Academy Manufactor
20% of 15 decks +16% synergy
Stridehangar Automaton
17% of 6 decks +16% synergy
Instants
Chaos Warp
33% of 9 decks +2% synergy
Counterspell
33% of 9 decks -9% synergy
Sorceries
Fabricate
44% of 9 decks +39% synergy
Blasphemous Act
33% of 9 decks +0% synergy
All Is Dust
27% of 15 decks +25% synergy
Utility Artifacts
Time Sieve
60% of 5 decks +57% synergy
Nim Deathmantle
47% of 15 decks +46% synergy
Mirrorworks
47% of 15 decks +46% synergy
Mycosynth Lattice
47% of 15 decks +46% synergy
Voltaic Key
47% of 15 decks +46% synergy
Darksteel Forge
47% of 15 decks +45% synergy
Rings of Brighthearth
47% of 15 decks +45% synergy
Sensei's Divining Top
47% of 15 decks +42% synergy
Ichor Wellspring
40% of 15 decks +38% synergy
Lithoform Engine
33% of 15 decks +32% synergy
Staff of Domination
33% of 15 decks +32% synergy
Forsaken Monument
33% of 15 decks +32% synergy
Ugin's Nexus
27% of 15 decks +26% synergy
Mindslaver
27% of 15 decks +26% synergy
Spine of Ish Sah
27% of 15 decks +26% synergy
Expedition Map
27% of 15 decks +24% synergy
Strionic Resonator
27% of 15 decks +24% synergy
Aetherflux Reservoir
27% of 15 decks +23% synergy
Skullclamp
27% of 15 decks +15% synergy
Commander's Sphere
27% of 15 decks +12% synergy
Mind Stone
27% of 15 decks +10% synergy
Fabrication Module
20% of 15 decks +20% synergy
Sword of the Meek
20% of 15 decks +20% synergy
Retrofitter Foundry
20% of 15 decks +20% synergy
Decoction Module
20% of 15 decks +20% synergy
Planar Bridge
20% of 15 decks +20% synergy
Trading Post
20% of 15 decks +19% synergy
Commander's Plate
20% of 15 decks +18% synergy
Hedron Archive
20% of 15 decks +17% synergy
Lotus Petal
20% of 15 decks +13% synergy
Aetherflux Conduit
17% of 6 decks +16% synergy
Enchantments
Mirrodin Besieged
33% of 9 decks +32% synergy
Storm the Vault
33% of 9 decks +30% synergy
Planeswalkers
Tezzeret the Seeker
44% of 9 decks +42% synergy
Karn, Living Legacy
33% of 15 decks +33% synergy
Ugin, the Ineffable
33% of 15 decks +32% synergy
Karn, the Great Creator
27% of 15 decks +26% synergy
Utility Lands
Academy Ruins
67% of 9 decks +62% synergy
Ancient Den
57% of 7 decks +52% synergy
Buried Ruin
53% of 15 decks +48% synergy
Urza's Saga
53% of 15 decks +46% synergy
Fomori Vault
50% of 10 decks +49% synergy
Temple of the False God
47% of 15 decks +37% synergy
Urza's Power Plant
40% of 15 decks +38% synergy
Urza's Mine
40% of 15 decks +38% synergy
Urza's Tower
40% of 15 decks +38% synergy
War Room
40% of 15 decks +34% synergy
Deserted Temple
27% of 15 decks +26% synergy
Urza's Workshop
27% of 15 decks +26% synergy
Strip Mine
27% of 15 decks +24% synergy
Karn's Bastion
27% of 15 decks +22% synergy
Reliquary Tower
27% of 15 decks -3% synergy
Scorched Ruins
20% of 15 decks +20% synergy
Mishra's Factory
20% of 15 decks +19% synergy
Shrine of the Forsaken Gods
20% of 15 decks +19% synergy
Treasure Vault
20% of 15 decks +17% synergy
Command Beacon
20% of 15 decks +16% synergy
Mana Artifacts
Sol Ring
100% of 15 decks +16% synergy
Arcane Signet
53% of 15 decks -19% synergy
Basalt Monolith
47% of 15 decks +44% synergy
Izzet Signet
44% of 9 decks +17% synergy
Liquimetal Torque
33% of 15 decks +30% synergy
Mox Opal
33% of 15 decks +29% synergy
Midnight Clock
33% of 9 decks +28% synergy
Chromatic Lantern
33% of 15 decks +24% synergy
Talisman of Creativity
33% of 9 decks +5% synergy
Gilded Lotus
27% of 15 decks +23% synergy
Everflowing Chalice
27% of 15 decks +22% synergy
Thran Dynamo
27% of 15 decks +22% synergy
Mana Crypt
27% of 15 decks +20% synergy
Fellwar Stone
27% of 15 decks +6% synergy
Blinkmoth Urn
20% of 15 decks +20% synergy
Darksteel Ingot
20% of 15 decks +19% synergy
Chromatic Orrery
20% of 15 decks +19% synergy
Worn Powerstone
20% of 15 decks +17% synergy
Aetheric Amplifier
17% of 6 decks +16% synergy
Lands
Steam Vents
78% of 9 decks +39% synergy
Hallowed Fountain
67% of 6 decks +26% synergy
Blood Crypt
60% of 5 decks +22% synergy
Godless Shrine
60% of 5 decks +20% synergy
Watery Grave
60% of 5 decks +20% synergy
Command Tower
60% of 15 decks -14% synergy
Silverbluff Bridge
56% of 9 decks +50% synergy
Spectator Seating
50% of 6 decks +25% synergy
Raugrin Triome
50% of 6 decks +24% synergy
Sacred Foundry
50% of 6 decks +15% synergy
Volcanic Island
33% of 9 decks +20% synergy
Training Center
33% of 9 decks +7% synergy
Scene of the Crime
30% of 10 decks +29% synergy
Hall of Tagsin
27% of 15 decks +26% synergy
Glimmervoid
27% of 15 decks +26% synergy
Power Depot
27% of 15 decks +26% synergy
Exotic Orchard
27% of 15 decks -9% synergy