Prototype Portal + Retreat to Coralhelm + Ensoul Artifact + Seat of the Synod

Prototype Portal
Retreat to Coralhelm
Ensoul Artifact
Seat of the Synod

Requires
Prototype Portal must be on the battlefield. Retreat to Coralhelm must be on the battlefield. Ensoul Artifact must be on the battlefield. Seat of the Synod must be in exile (exiled by Prototype Portal). Ensoul Artifact attached to Prototype Portal. Prototype Portal does not have summoning sickness.
Steps
  1. Activate Prototype Portal by tapping it, creating a token copy of Seat of the Synod.
  2. When the Seat of the Synod token enters the battlefield, Retreat to Coralhelm triggers, untapping Prototype Portal.
  3. Repeat.
Results
Infinite blue mana. Infinite landfall triggers. Infinite Seat of the Synod tokens.

Fblthp, the Lost
0.14% of 700 decks 1 decks
Urza, Lord High Artificer
0.01% of 12944 decks 1 decks
Nin, the Pain Artist
0.12% of 864 decks 1 decks
New Cards
Get Out
100% of 1 decks +96% synergy
Ghost Vacuum
100% of 1 decks +99% synergy
Marvin, Murderous Mimic
100% of 1 decks +96% synergy
Don't Make a Sound
100% of 1 decks +94% synergy
High Fae Trickster
100% of 1 decks +91% synergy
Creatures
Donna Noble
100% of 1 decks +100% synergy
Toggo, Goblin Weaponsmith
100% of 1 decks +99% synergy
Niv-Mizzet, the Firemind
100% of 1 decks +96% synergy
Brash Taunter
100% of 1 decks +96% synergy
The Locust God
100% of 1 decks +95% synergy
Niv-Mizzet, Parun
100% of 1 decks +92% synergy
Pollywog Prodigy
100% of 1 decks +89% synergy
Sphinx of Magosi
33% of 3 decks +33% synergy
Dross Scorpion
33% of 3 decks +33% synergy
Augur of Bolas
33% of 3 decks +33% synergy
Darksteel Myr
33% of 3 decks +33% synergy
Scaretiller
33% of 3 decks +33% synergy
Metalworker
33% of 3 decks +33% synergy
Sphinx of Uthuun
33% of 3 decks +33% synergy
Palinchron
33% of 3 decks +33% synergy
Kefnet the Mindful
33% of 3 decks +33% synergy
Walking Atlas
33% of 3 decks +33% synergy
Grand Architect
33% of 3 decks +33% synergy
Omen Hawker
33% of 3 decks +33% synergy
Gadwick, the Wizened
33% of 3 decks +33% synergy
Azami, Lady of Scrolls
33% of 3 decks +32% synergy
Stuffy Doll
33% of 3 decks +32% synergy
Karn, Legacy Reforged
33% of 3 decks +32% synergy
Tidespout Tyrant
33% of 3 decks +32% synergy
Vedalken Archmage
33% of 3 decks +32% synergy
Body of Knowledge
33% of 3 decks +32% synergy
Shimmer Myr
33% of 3 decks +32% synergy
Trophy Mage
33% of 3 decks +31% synergy
Thassa, God of the Sea
33% of 3 decks +31% synergy
Venser, Shaper Savant
33% of 3 decks +31% synergy
Myr Battlesphere
33% of 3 decks +31% synergy
Deadeye Navigator
33% of 3 decks +31% synergy
Triskaidekaphile
33% of 3 decks +31% synergy
Psychosis Crawler
33% of 3 decks +31% synergy
Silver Myr
33% of 3 decks +30% synergy
Baral, Chief of Compliance
33% of 3 decks +30% synergy
Peregrine Drake
33% of 3 decks +30% synergy
Forensic Gadgeteer
33% of 3 decks +30% synergy
Archaeomancer
33% of 3 decks +30% synergy
Chasm Skulker
33% of 3 decks +29% synergy
Laboratory Maniac
33% of 3 decks +29% synergy
Talrand, Sky Summoner
33% of 3 decks +29% synergy
Etherium Sculptor
33% of 3 decks +28% synergy
Displacer Kitten
33% of 3 decks +28% synergy
Hullbreaker Horror
33% of 3 decks +26% synergy
Instants
Comet Storm
100% of 1 decks +97% synergy
Chaos Warp
100% of 1 decks +68% synergy
Counterspell
100% of 3 decks +57% synergy
Blue Sun's Zenith
67% of 3 decks +64% synergy
Whir of Invention
67% of 3 decks +64% synergy
Machine Over Matter
33% of 3 decks +33% synergy
Hurl into History
33% of 3 decks +33% synergy
Reality Heist
33% of 3 decks +33% synergy
Urza's Command
33% of 3 decks +33% synergy
Into the Roil
33% of 3 decks +32% synergy
Cyber Conversion
33% of 3 decks +32% synergy
Intuition
33% of 3 decks +31% synergy
Evacuation
33% of 3 decks +31% synergy
Mana Leak
33% of 3 decks +31% synergy
Mystic Confluence
33% of 3 decks +31% synergy
High Tide
33% of 3 decks +30% synergy
Ghostly Flicker
33% of 3 decks +28% synergy
Resculpt
33% of 3 decks +28% synergy
Dramatic Reversal
33% of 3 decks +28% synergy
Aetherize
33% of 3 decks +28% synergy
Fact or Fiction
33% of 3 decks +27% synergy
Opt
33% of 3 decks +24% synergy
Pongify
33% of 3 decks +22% synergy
Frantic Search
33% of 3 decks +21% synergy
Mystical Tutor
33% of 3 decks +18% synergy
Arcane Denial
33% of 3 decks +14% synergy
Brainstorm
33% of 3 decks +12% synergy
Cyclonic Rift
33% of 3 decks +6% synergy
Sorceries
Hell to Pay
100% of 1 decks +98% synergy
Chain Reaction
100% of 1 decks +95% synergy
Fabricate
100% of 3 decks +94% synergy
Blasphemous Act
100% of 1 decks +66% synergy
Reshape
67% of 3 decks +65% synergy
Involuntary Cooldown
33% of 3 decks +33% synergy
Reconstruction
33% of 3 decks +33% synergy
Impede Momentum
33% of 3 decks +33% synergy
Scour All Possibilities
33% of 3 decks +33% synergy
Ugin's Insight
33% of 3 decks +33% synergy
Walk the Aeons
33% of 3 decks +32% synergy
Enter the Infinite
33% of 3 decks +32% synergy
Transmute Artifact
33% of 3 decks +32% synergy
Timetwister
33% of 3 decks +32% synergy
Personal Tutor
33% of 3 decks +32% synergy
Thoughtcast
33% of 3 decks +30% synergy
Preordain
33% of 3 decks +22% synergy
Utility Artifacts
Winter Moon
100% of 1 decks +99% synergy
The Millennium Calendar
67% of 3 decks +66% synergy
Cloud Key
67% of 3 decks +65% synergy
Sands of Time
33% of 3 decks +33% synergy
Shriekhorn
33% of 3 decks +33% synergy
Salvaging Station
33% of 3 decks +33% synergy
Summoning Station
33% of 3 decks +33% synergy
Retrofitter Foundry
33% of 3 decks +33% synergy
Crystal Ball
33% of 3 decks +33% synergy
Sword of the Paruns
33% of 3 decks +33% synergy
Proteus Staff
33% of 3 decks +33% synergy
Nim Deathmantle
33% of 3 decks +33% synergy
Winter Orb
33% of 3 decks +33% synergy
Mycosynth Lattice
33% of 3 decks +33% synergy
Voltaic Key
33% of 3 decks +32% synergy
The Enigma Jewel
33% of 3 decks +32% synergy
Crystal Shard
33% of 3 decks +32% synergy
Tormod's Crypt
33% of 3 decks +32% synergy
Clock of Omens
33% of 3 decks +32% synergy
Trading Post
33% of 3 decks +32% synergy
Nevinyrral's Disk
33% of 3 decks +32% synergy
Encroaching Mycosynth
33% of 3 decks +32% synergy
Darksteel Forge
33% of 3 decks +32% synergy
Moonsilver Key
33% of 3 decks +32% synergy
Lithoform Engine
33% of 3 decks +32% synergy
Manifold Key
33% of 3 decks +32% synergy
Elixir of Immortality
33% of 3 decks +32% synergy
Mirage Mirror
33% of 3 decks +32% synergy
Rings of Brighthearth
33% of 3 decks +32% synergy
Forsaken Monument
33% of 3 decks +32% synergy
Nettlecyst
33% of 3 decks +32% synergy
Mindsplice Apparatus
33% of 3 decks +31% synergy
Sapphire Medallion
33% of 3 decks +31% synergy
Isochron Scepter
33% of 3 decks +31% synergy
Unwinding Clock
33% of 3 decks +31% synergy
Sword of the Animist
33% of 3 decks +29% synergy
Sensei's Divining Top
33% of 3 decks +28% synergy
Ashnod's Altar
33% of 3 decks +26% synergy
Swiftfoot Boots
33% of 3 decks +5% synergy
Enchantments
Shameless Charlatan
33% of 3 decks +33% synergy
Cast Through Time
33% of 3 decks +33% synergy
March of the Machines
33% of 3 decks +33% synergy
Ever-Watching Threshold
33% of 3 decks +33% synergy
Sphinx's Tutelage
33% of 3 decks +32% synergy
Artificer Class
33% of 3 decks +32% synergy
Efficient Construction
33% of 3 decks +32% synergy
Mirrodin Besieged
33% of 3 decks +31% synergy
Psychic Corrosion
33% of 3 decks +31% synergy
Court of Vantress
33% of 3 decks +31% synergy
Proft's Eidetic Memory
33% of 3 decks +31% synergy
Struggle for Project Purity
33% of 3 decks +31% synergy
Ominous Seas
33% of 3 decks +30% synergy
Thopter Spy Network
33% of 3 decks +30% synergy
Teferi's Ageless Insight
33% of 3 decks +28% synergy
Propaganda
33% of 3 decks +22% synergy
Mystic Remora
33% of 3 decks +15% synergy
Rhystic Study
33% of 3 decks +6% synergy
Planeswalkers
Will Kenrith
33% of 3 decks +33% synergy
Karn, Living Legacy
33% of 3 decks +33% synergy
Tezzeret, Artifice Master
33% of 3 decks +32% synergy
Tezzeret the Seeker
33% of 3 decks +31% synergy
Jace, Wielder of Mysteries
33% of 3 decks +30% synergy
Narset, Parter of Veils
33% of 3 decks +28% synergy
Utility Lands
Desert of the Fervent
100% of 1 decks +99% synergy
Desolate Lighthouse
100% of 1 decks +96% synergy
Forgotten Cave
100% of 1 decks +96% synergy
Archway of Innovation
100% of 1 decks +95% synergy
Great Furnace
100% of 1 decks +94% synergy
Treasure Vault
67% of 3 decks +64% synergy
Buried Ruin
67% of 3 decks +62% synergy
Reliquary Tower
67% of 3 decks +37% synergy
Blighted Cataract
33% of 3 decks +33% synergy
Ghost Town
33% of 3 decks +33% synergy
Cryptic Caves
33% of 3 decks +33% synergy
Sanctum of Eternity
33% of 3 decks +33% synergy
Mirrorpool
33% of 3 decks +33% synergy
Mishra's Factory
33% of 3 decks +33% synergy
Urza's Workshop
33% of 3 decks +32% synergy
Desert of the Mindful
33% of 3 decks +32% synergy
Faerie Conclave
33% of 3 decks +32% synergy
Radiant Fountain
33% of 3 decks +32% synergy
Tolaria West
33% of 3 decks +32% synergy
Blast Zone
33% of 3 decks +32% synergy
Urza's Power Plant
33% of 3 decks +32% synergy
Urza's Tower
33% of 3 decks +32% synergy
Riptide Laboratory
33% of 3 decks +31% synergy
Halimar Depths
33% of 3 decks +30% synergy
Lonely Sandbar
33% of 3 decks +30% synergy
Darksteel Citadel
33% of 3 decks +30% synergy
Minamo, School at Water's Edge
33% of 3 decks +29% synergy
Urza's Saga
33% of 3 decks +26% synergy
Temple of the False God
33% of 3 decks +24% synergy
Ancient Tomb
33% of 3 decks +23% synergy
Otawara, Soaring City
33% of 3 decks +16% synergy
Rogue's Passage
33% of 3 decks +14% synergy
Mana Artifacts
Sol Ring
100% of 3 decks +16% synergy
Decanter of Endless Water
67% of 3 decks +62% synergy
Thought Vessel
67% of 3 decks +50% synergy
Mana Geode
33% of 3 decks +33% synergy
Darksteel Ingot
33% of 3 decks +32% synergy
Basalt Monolith
33% of 3 decks +31% synergy
Everflowing Chalice
33% of 3 decks +29% synergy
Thran Dynamo
33% of 3 decks +29% synergy
Commander's Sphere
33% of 3 decks +18% synergy
Mind Stone
33% of 3 decks +16% synergy
Lands
Highland Lake
100% of 1 decks +98% synergy
Talon Gates of Madara
100% of 1 decks +97% synergy
Urza's Cave
100% of 1 decks +96% synergy
Izzet Guildgate
100% of 1 decks +95% synergy
Izzet Boilerworks
100% of 1 decks +84% synergy
Temple of Epiphany
100% of 1 decks +82% synergy
Myriad Landscape
67% of 3 decks +47% synergy
Command Tower
67% of 3 decks -7% synergy
Warped Landscape
33% of 3 decks +33% synergy
Gateway Plaza
33% of 3 decks +33% synergy
The Mycosynth Gardens
33% of 3 decks +31% synergy
Ash Barrens
33% of 3 decks +29% synergy
Gemstone Caverns
33% of 3 decks +28% synergy
Reflecting Pool
33% of 3 decks +28% synergy
Prismatic Vista
33% of 3 decks +28% synergy
Cavern of Souls
33% of 3 decks +26% synergy
Terramorphic Expanse
33% of 3 decks +18% synergy