Prototype Portal + Dross Scorpion + March of the Machines + Seat of the Synod

Prototype Portal
Dross Scorpion
March of the Machines
Seat of the Synod

Requires
Prototype Portal must be on the battlefield. Dross Scorpion must be on the battlefield. March of the Machines must be on the battlefield. Seat of the Synod must be in exile (exiled by Prototype Portal).
Steps
  1. Activate Prototype Portal by paying 0 and tapping it, creating a token copy of Seat of the Synod.
  2. The Seat of the Synod token enters the battlefield as a 0/0 creature due to March of the Machines, and dies as a state-based action due to having zero or less toughness.
  3. Dross Scorpion triggers, untapping Prototype Portal.
  4. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite landfall triggers. Infinite LTB.

Eloise, Nephalia Sleuth
0.07% of 1406 decks 1 decks
Memnarch
0.07% of 1469 decks 1 decks
Sharuum the Hegemon
0.05% of 1960 decks 1 decks
Nin, the Pain Artist
0.12% of 841 decks 1 decks
High Synergy Cards
Buried Ruin
100% of 4 decks +95% synergy
Fabricate
100% of 4 decks +94% synergy
Creatures
Auriok Salvagers
100% of 1 decks +100% synergy
Chrome Courier
100% of 1 decks +100% synergy
Donna Noble
100% of 1 decks +100% synergy
Toggo, Goblin Weaponsmith
100% of 1 decks +99% synergy
Enigma Sphinx
100% of 1 decks +99% synergy
Magister Sphinx
100% of 1 decks +98% synergy
Gold Myr
100% of 1 decks +97% synergy
Soul's Attendant
100% of 1 decks +97% 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
Phyrexian Metamorph
75% of 4 decks +68% synergy
Puppet Conjurer
50% of 2 decks +50% synergy
Extractor Demon
50% of 2 decks +50% synergy
Sphinx Summoner
50% of 2 decks +50% synergy
Treasure Mage
50% of 4 decks +50% synergy
Thopter Assembly
50% of 4 decks +50% synergy
Nick Valentine, Private Eye
50% of 2 decks +50% synergy
Vedalken Engineer
50% of 4 decks +49% synergy
Omen Hawker
50% of 2 decks +49% synergy
Fain, the Broker
50% of 2 decks +49% synergy
Disciple of the Vault
50% of 2 decks +48% synergy
Falkenrath Noble
50% of 2 decks +48% synergy
Trinket Mage
50% of 4 decks +48% synergy
Drivnod, Carnage Dominus
50% of 2 decks +47% synergy
Marionette Master
50% of 2 decks +46% synergy
Nadier's Nightblade
50% of 2 decks +46% synergy
Solemn Simulacrum
50% of 4 decks +36% synergy
Combat Courier
33% of 3 decks +33% synergy
Transplant Theorist
33% of 3 decks +33% synergy
Liberator, Urza's Battlethopter
33% of 3 decks +32% synergy
Triskaidekaphile
33% of 3 decks +31% synergy
Academy Manufactor
33% of 3 decks +29% synergy
Filigree Sages
25% of 4 decks +25% synergy
Sphinx of Magosi
25% of 4 decks +25% synergy
Scuttlemutt
25% of 4 decks +25% synergy
Augur of Bolas
25% of 4 decks +25% synergy
Scholar of the Lost Trove
25% of 4 decks +25% synergy
Lodestone Golem
25% of 4 decks +25% synergy
Darksteel Myr
25% of 4 decks +25% synergy
Myr Galvanizer
25% of 4 decks +25% synergy
Sphinx of Uthuun
25% of 4 decks +25% synergy
Kefnet the Mindful
25% of 4 decks +25% synergy
Memnarch
25% of 4 decks +25% synergy
Alloy Myr
25% of 4 decks +24% synergy
Arcum Dagsson
25% of 4 decks +24% synergy
Gadwick, the Wizened
25% of 4 decks +24% synergy
Kuldotha Forgemaster
25% of 4 decks +24% synergy
Azami, Lady of Scrolls
25% of 4 decks +24% synergy
Instants
Comet Storm
100% of 1 decks +97% synergy
Mortify
100% of 1 decks +88% synergy
Chaos Warp
100% of 1 decks +68% synergy
Clutch of the Undercity
50% of 2 decks +50% synergy
Evacuation
50% of 4 decks +48% synergy
Mystic Confluence
50% of 4 decks +47% synergy
Soul Shatter
50% of 2 decks +47% synergy
Whir of Invention
50% of 4 decks +47% synergy
Lim-Dûl's Vault
50% of 2 decks +46% synergy
Fact or Fiction
50% of 4 decks +43% synergy
Deadly Dispute
50% of 2 decks +39% synergy
Arcane Denial
50% of 4 decks +30% synergy
Negate
50% of 4 decks +27% synergy
Counterspell
50% of 4 decks +7% synergy
Resculpt
33% of 3 decks +28% synergy
Into the Roil
25% of 4 decks +24% synergy
Thirst for Knowledge
25% of 4 decks +23% synergy
Mana Leak
25% of 4 decks +23% synergy
Blue Sun's Zenith
25% of 4 decks +22% synergy
Unwind
25% of 4 decks +22% synergy
Pull from Tomorrow
25% of 4 decks +22% synergy
Dispel
25% of 4 decks +20% synergy
Ghostly Flicker
25% of 4 decks +20% synergy
Pact of Negation
25% of 4 decks +18% synergy
Mystical Tutor
25% of 4 decks +10% synergy
Cyclonic Rift
25% of 4 decks -3% synergy
Sorceries
Obzedat's Aid
100% of 1 decks +100% synergy
Open the Vaults
100% of 1 decks +99% synergy
Hell to Pay
100% of 1 decks +98% synergy
Chain Reaction
100% of 1 decks +95% synergy
Blasphemous Act
100% of 1 decks +66% synergy
Emergency Weld
50% of 2 decks +50% synergy
Reshape
50% of 4 decks +48% synergy
Persist
50% of 2 decks +48% synergy
Unmarked Grave
50% of 2 decks +47% synergy
Dread Return
50% of 2 decks +45% synergy
Feed the Swarm
50% of 2 decks +32% synergy
Forging the Anchor
33% of 3 decks +33% synergy
Vivisection
25% of 4 decks +25% synergy
Acquire
25% of 4 decks +25% synergy
Reverse Engineer
25% of 4 decks +24% synergy
Walk the Aeons
25% of 4 decks +24% synergy
Blatant Thievery
25% of 4 decks +24% synergy
One with the Machine
25% of 4 decks +24% synergy
Rite of Replication
25% of 4 decks +22% synergy
Windfall
25% of 4 decks +12% synergy
Utility Artifacts
Scourglass
100% of 1 decks +100% synergy
Thopter Foundry
100% of 1 decks +98% synergy
Time Sieve
100% of 2 decks +97% synergy
Clock of Omens
75% of 4 decks +74% synergy
Nevinyrral's Disk
75% of 4 decks +74% synergy
Salvaging Station
50% of 4 decks +50% synergy
Blasting Station
50% of 4 decks +49% synergy
Voltaic Key
50% of 4 decks +49% synergy
Trading Post
50% of 4 decks +49% synergy
Rings of Brighthearth
50% of 4 decks +48% synergy
Vat of Rebirth
50% of 2 decks +48% synergy
Unwinding Clock
50% of 4 decks +47% synergy
Swiftfoot Boots
50% of 4 decks +22% synergy
Nettlecyst
33% of 3 decks +32% synergy
Shriekhorn
25% of 4 decks +25% synergy
Flayer Husk
25% of 4 decks +25% synergy
Myr Matrix
25% of 4 decks +25% synergy
Sword of the Meek
25% of 4 decks +25% synergy
Conjurer's Bauble
25% of 4 decks +25% synergy
Myr Turbine
25% of 4 decks +25% synergy
Trinisphere
25% of 4 decks +24% synergy
Liquimetal Coating
25% of 4 decks +24% synergy
Welding Jar
25% of 4 decks +24% synergy
Torpor Orb
25% of 4 decks +24% synergy
Winter Orb
25% of 4 decks +24% synergy
Mycosynth Lattice
25% of 4 decks +24% synergy
Mycosynth Wellspring
25% of 4 decks +24% synergy
Helm of Awakening
25% of 4 decks +24% synergy
Tormod's Crypt
25% of 4 decks +24% synergy
Darksteel Forge
25% of 4 decks +24% synergy
Mishra's Bauble
25% of 4 decks +24% synergy
Elixir of Immortality
25% of 4 decks +23% synergy
Forsaken Monument
25% of 4 decks +23% synergy
Sculpting Steel
25% of 4 decks +23% synergy
Ashnod's Altar
25% of 4 decks +17% synergy
Wayfarer's Bauble
25% of 4 decks +15% synergy
Skullclamp
25% of 4 decks +13% synergy
Lightning Greaves
25% of 4 decks -0% synergy
Enchantments
Tempered Steel
100% of 1 decks +98% synergy
Dire Undercurrents
50% of 2 decks +50% synergy
Proft's Eidetic Memory
50% of 2 decks +48% synergy
Artificer Class
33% of 3 decks +32% synergy
Ensoul Artifact
25% of 4 decks +25% synergy
Cast Through Time
25% of 4 decks +25% synergy
The Antiquities War
25% of 4 decks +25% synergy
Freed from the Real
25% of 4 decks +23% synergy
Mirrormade
25% of 4 decks +23% synergy
Retreat to Coralhelm
25% of 4 decks +23% synergy
Planeswalkers
Will Kenrith
25% of 4 decks +25% synergy
Ugin, the Spirit Dragon
25% of 4 decks +23% synergy
Utility Lands
Sejiri Steppe
100% of 1 decks +100% synergy
Desert of the Fervent
100% of 1 decks +99% synergy
Desolate Lighthouse
100% of 1 decks +96% synergy
Vault of Whispers
100% of 2 decks +96% synergy
Forgotten Cave
100% of 1 decks +95% synergy
Ancient Den
100% of 1 decks +95% synergy
Great Furnace
100% of 1 decks +94% synergy
Lonely Sandbar
50% of 4 decks +47% synergy
Darksteel Citadel
50% of 4 decks +46% synergy
Temple of the False God
50% of 4 decks +40% synergy
Reliquary Tower
50% of 4 decks +21% synergy
Blighted Cataract
25% of 4 decks +25% synergy
Cryptic Caves
25% of 4 decks +24% synergy
Sanctum of Eternity
25% of 4 decks +24% synergy
Mirrorpool
25% of 4 decks +24% synergy
Mishra's Factory
25% of 4 decks +24% synergy
Terrain Generator
25% of 4 decks +24% synergy
Desert of the Mindful
25% of 4 decks +24% synergy
Faerie Conclave
25% of 4 decks +24% synergy
Radiant Fountain
25% of 4 decks +24% synergy
Tolaria West
25% of 4 decks +24% synergy
Guildless Commons
25% of 4 decks +24% synergy
Urza's Power Plant
25% of 4 decks +23% synergy
Urza's Mine
25% of 4 decks +23% synergy
Urza's Tower
25% of 4 decks +23% synergy
Riptide Laboratory
25% of 4 decks +23% synergy
Maze of Ith
25% of 4 decks +22% synergy
Halimar Depths
25% of 4 decks +22% synergy
High Market
25% of 4 decks +22% synergy
Scavenger Grounds
25% of 4 decks +22% synergy
Castle Vantress
25% of 4 decks +21% synergy
Academy Ruins
25% of 4 decks +20% synergy
War Room
25% of 4 decks +19% synergy
Mystic Sanctuary
25% of 4 decks +13% synergy
Mana Artifacts
Dimir Signet
100% of 2 decks +70% synergy
Sol Ring
100% of 4 decks +16% synergy
Mind Stone
75% of 4 decks +58% synergy
Darksteel Ingot
50% of 4 decks +49% synergy
Prismatic Lens
50% of 4 decks +49% synergy
Thran Dynamo
50% of 4 decks +45% synergy
Commander's Sphere
50% of 4 decks +35% synergy
Thought Vessel
50% of 4 decks +33% synergy
The Mightstone and Weakstone
33% of 3 decks +32% synergy
Liquimetal Torque
33% of 3 decks +30% synergy
Decanter of Endless Water
33% of 3 decks +28% synergy
Chromatic Sphere
25% of 4 decks +25% synergy
Mana Geode
25% of 4 decks +25% synergy
Dreamstone Hedron
25% of 4 decks +24% synergy
Caged Sun
25% of 4 decks +23% synergy
Worn Powerstone
25% of 4 decks +22% synergy
Basalt Monolith
25% of 4 decks +22% synergy
Hedron Archive
25% of 4 decks +22% synergy
Gilded Lotus
25% of 4 decks +22% synergy
Everflowing Chalice
25% of 4 decks +20% synergy
Sky Diamond
25% of 4 decks +20% synergy
Midnight Clock
25% of 4 decks +20% synergy
Arcane Signet
25% of 4 decks -47% synergy
Lands
Highland Lake
100% of 1 decks +98% synergy
Izzet Guildgate
100% of 1 decks +95% synergy
Goldmire Bridge
100% of 1 decks +95% synergy
Mystic Gate
100% of 1 decks +94% synergy
Razortide Bridge
100% of 1 decks +93% synergy
Irrigated Farmland
100% of 1 decks +92% synergy
Skycloud Expanse
100% of 1 decks +87% synergy
Azorius Chancery
100% of 1 decks +85% synergy
Port Town
100% of 1 decks +84% synergy
Izzet Boilerworks
100% of 1 decks +84% synergy
Temple of Enlightenment
100% of 1 decks +84% synergy
Dimir Aqueduct
100% of 2 decks +83% synergy
Temple of Epiphany
100% of 1 decks +82% synergy
Isolated Chapel
100% of 1 decks +73% synergy
Arcane Sanctum
100% of 1 decks +72% synergy
Caves of Koilos
100% of 1 decks +72% synergy
Prairie Stream
100% of 1 decks +66% synergy
Terramorphic Expanse
75% of 4 decks +59% synergy
Myriad Landscape
75% of 4 decks +55% synergy
Submerged Boneyard
50% of 2 decks +48% synergy
Jwar Isle Refuge
50% of 2 decks +48% synergy
Dimir Guildgate
50% of 2 decks +45% synergy
Mistvault Bridge
50% of 2 decks +45% synergy
Evolving Wilds
50% of 4 decks +29% synergy
Watery Grave
50% of 2 decks +9% synergy
Command Tower
50% of 4 decks -24% synergy
Power Depot
33% of 3 decks +33% synergy
Mirrex
33% of 3 decks +32% synergy
Obscura Storefront
33% of 3 decks +32% synergy
The Mycosynth Gardens
33% of 3 decks +31% synergy
Warped Landscape
25% of 4 decks +25% synergy
Ash Barrens
25% of 4 decks +20% synergy
Reflecting Pool
25% of 4 decks +20% synergy
Exotic Orchard
25% of 4 decks -11% synergy