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.
You control no other Thopters.
Mana needed: 
each turn
each turn
Steps
- At the beginning of your upkeep, Thopter Assembly triggers.
- Holding priority, activate Prototype Portal by paying and tapping it, creating a token copy of Gonti's Aether Heart.
- Gonti's Aether Heart enters the battlefield, causing you to get
. - Resolve the Thopter Assembly trigger, returning it from the battlefield to your hand and creating five 1/1 Thopter artifact creature tokens.
- The Thopters enter the battlefield, triggering Gonti's Aether Heart five times, causing you to get ten .
- Activate Krark-Clan Ironworks five times by sacrificing the five Thopters, adding ten .
- Cast Thopter Assembly by paying .
- Thopter Assembly enter the battlefield, triggering Gonti's Aether Heart, causing you to get .
- Activate Gonti's Aether Heart by paying eight and exiling it, causing you to take an extra turn after this one.
- Repeat each turn.
Results
Infinite turns.
Breya, Etherium Shaper
0.03% of 13938 decks
4 decks
Oviya Pashiri, Sage Lifecrafter
0.47% of 430 decks
2 decks
Karn, Silver Golem
0.19% of 1055 decks
2 decks
Oswald Fiddlebender
0.06% of 1791 decks
1 decks
Dr. Madison Li
0.02% of 4216 decks
1 decks
The Peregrine Dynamo
0.15% of 664 decks
1 decks
Liberator, Urza's Battlethopter
0.03% of 3039 decks
1 decks
Saheeli, the Gifted
0.05% of 1993 decks
1 decks
Daretti, Scrap Savant
0.04% of 2839 decks
1 decks
High Synergy Cards
Inventors' Fair
86% of 14 decks
+82% synergy
Mechanized Production
83% of 6 decks
+81% synergy
Sai, Master Thopterist
83% of 6 decks
+80% synergy
Fomori Vault
80% of 5 decks
+78% synergy
Etherium Sculptor
83% of 6 decks
+78% synergy
Seat of the Synod
83% of 6 decks
+77% synergy
Unwinding Clock
79% of 14 decks
+76% synergy
Darksteel Citadel
79% of 14 decks
+75% synergy
Scrap Trawler
71% of 14 decks
+69% synergy
Mystic Forge
71% of 14 decks
+69% synergy
Top Cards
Foundry Inspector
71% of 14 decks
+67% synergy
Master Transmuter
67% of 6 decks
+65% synergy
Whir of Invention
67% of 6 decks
+64% synergy
Padeem, Consul of Innovation
67% of 6 decks
+63% synergy
Jhoira, Weatherlight Captain
67% of 6 decks
+61% synergy
Kuldotha Forgemaster
64% of 14 decks
+63% synergy
Clock of Omens
64% of 14 decks
+63% synergy
Myr Retriever
64% of 14 decks
+62% synergy
Sculpting Steel
64% of 14 decks
+62% synergy
Ashnod's Altar
64% of 14 decks
+57% synergy
Creatures
Enthusiastic Mechanaut
60% of 5 decks
+56% synergy
Junk Diver
57% of 14 decks
+56% synergy
Myr Battlesphere
57% of 14 decks
+55% synergy
Goblin Welder
57% of 7 decks
+54% synergy
Hellkite Tyrant
57% of 7 decks
+53% synergy
Karn, Legacy Reforged
56% of 9 decks
+55% synergy
Shimmer Myr
50% of 14 decks
+48% synergy
Mycosynth Golem
43% of 14 decks
+42% synergy
Blightsteel Colossus
36% of 14 decks
+34% synergy
Steel Hellkite
36% of 14 decks
+34% synergy
Solemn Simulacrum
36% of 14 decks
+22% synergy
Liberator, Urza's Battlethopter
33% of 12 decks
+32% synergy
Metalworker
29% of 14 decks
+28% synergy
Metalwork Colossus
29% of 14 decks
+28% synergy
Steel Overseer
29% of 14 decks
+27% synergy
Jhoira's Familiar
29% of 14 decks
+27% synergy
Wurmcoil Engine
29% of 14 decks
+27% synergy
Walking Ballista
29% of 14 decks
+26% synergy
Scrapyard Recombiner
21% of 14 decks
+21% synergy
Darksteel Colossus
21% of 14 decks
+21% synergy
Soul of New Phyrexia
21% of 14 decks
+21% synergy
Palladium Myr
21% of 14 decks
+19% synergy
Instants
Counterspell
50% of 6 decks
+7% synergy
Chaos Warp
43% of 7 decks
+11% synergy
Sorceries
Demonic Tutor
75% of 4 decks
+53% synergy
Fabricate
50% of 6 decks
+44% synergy
Saheeli's Directive
43% of 7 decks
+42% synergy
Blasphemous Act
43% of 7 decks
+9% synergy
All Is Dust
36% of 14 decks
+34% synergy
Utility Artifacts
Time Sieve
75% of 4 decks
+72% synergy
The One Ring
64% of 11 decks
+55% synergy
Sensei's Divining Top
50% of 14 decks
+45% synergy
Mycosynth Lattice
43% of 14 decks
+42% synergy
Voltaic Key
43% of 14 decks
+42% synergy
Darksteel Forge
43% of 14 decks
+42% synergy
Rings of Brighthearth
43% of 14 decks
+41% synergy
Nim Deathmantle
36% of 14 decks
+35% synergy
Mirrorworks
36% of 14 decks
+35% synergy
Nevinyrral's Disk
36% of 14 decks
+34% synergy
Ichor Wellspring
36% of 14 decks
+34% synergy
Aetherflux Reservoir
36% of 14 decks
+32% synergy
Retrofitter Foundry
29% of 14 decks
+28% synergy
Skullclamp
29% of 14 decks
+16% synergy
Ugin's Nexus
21% of 14 decks
+21% synergy
Sword of the Meek
21% of 14 decks
+21% synergy
Aetherworks Marvel
21% of 14 decks
+21% synergy
Planar Bridge
21% of 14 decks
+21% synergy
Spine of Ish Sah
21% of 14 decks
+21% synergy
Trading Post
21% of 14 decks
+20% synergy
Lithoform Engine
21% of 14 decks
+20% synergy
Manifold Key
21% of 14 decks
+20% synergy
Mirage Mirror
21% of 14 decks
+20% synergy
Staff of Domination
21% of 14 decks
+20% synergy
Forsaken Monument
21% of 14 decks
+20% synergy
Cloud Key
21% of 14 decks
+20% synergy
Hedron Archive
21% of 14 decks
+18% synergy
Planeswalkers
Ugin, the Ineffable
43% of 14 decks
+41% synergy
Daretti, Scrap Savant
43% of 7 decks
+40% synergy
Karn, the Great Creator
36% of 14 decks
+35% synergy
Karn, Living Legacy
25% of 12 decks
+24% synergy
Utility Lands
Buried Ruin
71% of 14 decks
+66% synergy
Great Furnace
71% of 7 decks
+66% synergy
Ancient Den
67% of 6 decks
+61% synergy
Urza's Saga
62% of 13 decks
+54% synergy
War Room
43% of 14 decks
+36% synergy
Ancient Tomb
36% of 14 decks
+25% synergy
Reliquary Tower
36% of 14 decks
+6% synergy
Urza's Workshop
33% of 12 decks
+32% synergy
Treasure Vault
31% of 13 decks
+28% synergy
Deserted Temple
29% of 14 decks
+28% synergy
Urza's Power Plant
29% of 14 decks
+27% synergy
Urza's Mine
29% of 14 decks
+27% synergy
Urza's Tower
29% of 14 decks
+27% synergy
Strip Mine
29% of 14 decks
+26% synergy
Karn's Bastion
29% of 14 decks
+23% synergy
Temple of the False God
29% of 14 decks
+19% synergy
Scorched Ruins
21% of 14 decks
+21% synergy
Urza's Factory
21% of 14 decks
+21% synergy
Blast Zone
21% of 14 decks
+20% synergy
Shrine of the Forsaken Gods
21% of 14 decks
+20% synergy
Guildless Commons
21% of 14 decks
+20% synergy
Geier Reach Sanitarium
21% of 14 decks
+18% synergy
Mana Artifacts
Sol Ring
100% of 14 decks
+16% synergy
Izzet Signet
50% of 6 decks
+22% synergy
Talisman of Creativity
50% of 6 decks
+21% synergy
Mana Vault
43% of 14 decks
+36% synergy
Mana Crypt
43% of 14 decks
+35% synergy
Arcane Signet
43% of 14 decks
-29% synergy
Liquimetal Torque
38% of 13 decks
+35% synergy
Blinkmoth Urn
36% of 14 decks
+35% synergy
Basalt Monolith
36% of 14 decks
+33% synergy
Mind Stone
36% of 14 decks
+18% synergy
Grim Monolith
29% of 14 decks
+27% synergy
Everflowing Chalice
29% of 14 decks
+24% synergy
Thran Dynamo
29% of 14 decks
+24% synergy
The Mightstone and Weakstone
25% of 12 decks
+24% synergy
Worn Powerstone
21% of 14 decks
+19% synergy
Mox Opal
21% of 14 decks
+17% synergy
Fellwar Stone
21% of 14 decks
+0% synergy
Lands
Steam Vents
83% of 6 decks
+44% synergy
Hallowed Fountain
80% of 5 decks
+39% synergy
Blood Crypt
75% of 4 decks
+36% synergy
Godless Shrine
75% of 4 decks
+34% synergy
Watery Grave
75% of 4 decks
+34% synergy
Spectator Seating
60% of 5 decks
+35% synergy
Raugrin Triome
60% of 5 decks
+33% synergy
Sacred Foundry
60% of 5 decks
+24% synergy
Training Center
50% of 6 decks
+23% synergy
Command Tower
43% of 14 decks
-31% synergy
Hall of Tagsin
33% of 12 decks
+33% synergy
Exotic Orchard
29% of 14 decks
-7% synergy