Prototype Portal + Dross Scorpion + March of the Machines + Darksteel Citadel

Prototype Portal
Dross Scorpion
March of the Machines
Darksteel Citadel

Requires
Prototype Portal must be on the battlefield. Dross Scorpion must be on the battlefield. March of the Machines must be on the battlefield. Darksteel Citadel must be in exile (exiled by Prototype Portal).
Steps
  1. Activate Prototype Portal by paying 0 and tapping it, creating a token copy of Darksteel Citadel.
  2. The Darksteel Citadel 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.

Tameshi, Reality Architect
0.04% of 2485 decks 1 decks
Memnarch
0.07% of 1469 decks 1 decks
Belisarius Cawl
0.13% of 767 decks 1 decks
Nin, the Pain Artist
0.12% of 841 decks 1 decks
Lynde, Cheerful Tormentor
0.02% of 5500 decks 1 decks
High Synergy Cards
Top Cards
Mind Stone
80% of 5 decks +63% synergy
Creatures
Blim, Comedic Genius
100% of 1 decks +100% synergy
Bitterheart Witch
100% of 1 decks +100% synergy
Thoughtrender Lamia
100% of 1 decks +100% synergy
Wicked Visitor
100% of 1 decks +99% synergy
God-Eternal Bontu
100% of 1 decks +99% synergy
Ashiok's Reaper
100% of 1 decks +99% synergy
Paladin Danse, Steel Maverick
100% of 1 decks +99% synergy
Grim Guardian
100% of 1 decks +99% synergy
Gixian Puppeteer
100% of 1 decks +98% synergy
Securitron Squadron
100% of 1 decks +98% synergy
Demon of Fate's Design
100% of 1 decks +98% synergy
Hearthborn Battler
100% of 1 decks +98% synergy
Obeka, Splitter of Seconds
100% of 1 decks +98% synergy
Doomwake Giant
100% of 1 decks +98% synergy
Nightscape Familiar
100% of 1 decks +97% synergy
Alexios, Deimos of Kosmos
100% of 1 decks +96% synergy
Rakdos, Patron of Chaos
100% of 1 decks +95% synergy
Saruman, the White Hand
100% of 1 decks +95% synergy
Notion Thief
100% of 1 decks +93% synergy
Braids, Arisen Nightmare
100% of 1 decks +92% synergy
Baleful Strix
100% of 1 decks +87% synergy
Solemn Simulacrum
60% of 5 decks +46% synergy
Blood Aspirant
50% of 2 decks +50% synergy
Dreamshaper Shaman
50% of 2 decks +50% synergy
Donna Noble
50% of 2 decks +50% synergy
Toggo, Goblin Weaponsmith
50% of 2 decks +49% synergy
Platoon Dispenser
50% of 2 decks +49% synergy
Space Marine Devastator
50% of 2 decks +49% synergy
Tavern Scoundrel
50% of 2 decks +49% synergy
Ultramarines Honour Guard
50% of 2 decks +49% synergy
Unctus, Grand Metatect
50% of 4 decks +48% synergy
Oswald Fiddlebender
50% of 2 decks +48% synergy
The Ninth Doctor
50% of 2 decks +48% synergy
Teshar, Ancestor's Apostle
50% of 2 decks +48% synergy
Gold Myr
50% of 2 decks +47% synergy
Urza, Prince of Kroog
50% of 2 decks +47% synergy
Thought Monitor
50% of 4 decks +47% synergy
Keeper of the Accord
50% of 2 decks +46% synergy
Niv-Mizzet, the Firemind
50% of 2 decks +46% synergy
Brash Taunter
50% of 2 decks +46% synergy
Spirited Companion
50% of 2 decks +46% synergy
The Locust God
50% of 2 decks +45% synergy
Knight of the White Orchid
50% of 2 decks +44% synergy
Niv-Mizzet, Parun
50% of 2 decks +42% synergy
Sun Titan
50% of 2 decks +39% synergy
Treasure Mage
40% of 5 decks +40% synergy
Sphinx of the Second Sun
40% of 5 decks +38% synergy
Trinket Mage
40% of 5 decks +38% synergy
Foundry Inspector
40% of 5 decks +36% synergy
Phyrexian Metamorph
40% of 5 decks +33% synergy
Instants
Rakdos Charm
100% of 1 decks +86% synergy
Comet Storm
50% of 2 decks +47% synergy
Dispatch
50% of 2 decks +45% synergy
Generous Gift
50% of 2 decks +24% synergy
Chaos Warp
50% of 2 decks +18% synergy
Path to Exile
50% of 2 decks +5% synergy
Swords to Plowshares
50% of 2 decks -13% synergy
Mystic Confluence
40% of 5 decks +37% synergy
Whir of Invention
40% of 5 decks +37% synergy
Fact or Fiction
40% of 5 decks +33% synergy
Counterspell
40% of 5 decks -3% synergy
Ice Out
33% of 3 decks +33% synergy
Resculpt
25% of 4 decks +20% synergy
Retraction Helix
20% of 5 decks +20% synergy
Into the Roil
20% of 5 decks +19% synergy
Thirst for Knowledge
20% of 5 decks +18% synergy
Evacuation
20% of 5 decks +18% synergy
Mana Leak
20% of 5 decks +18% synergy
Blue Sun's Zenith
20% of 5 decks +17% synergy
Unwind
20% of 5 decks +17% synergy
Pull from Tomorrow
20% of 5 decks +17% synergy
Dispel
20% of 5 decks +15% synergy
Ghostly Flicker
20% of 5 decks +15% synergy
Pact of Negation
20% of 5 decks +13% synergy
Frantic Search
20% of 5 decks +8% synergy
Mystical Tutor
20% of 5 decks +5% synergy
Arcane Denial
20% of 5 decks +0% synergy
Brainstorm
20% of 5 decks -1% synergy
Negate
20% of 5 decks -3% synergy
Cyclonic Rift
20% of 5 decks -8% synergy
Sorceries
Extinguish All Hope
100% of 1 decks +99% synergy
Ringsight
100% of 1 decks +95% synergy
Hell to Pay
50% of 2 decks +48% synergy
Organic Extinction
50% of 2 decks +47% synergy
Disrupt Decorum
50% of 2 decks +47% synergy
Hour of Reckoning
50% of 2 decks +46% synergy
Dance of the Manse
50% of 2 decks +46% synergy
Chain Reaction
50% of 2 decks +45% synergy
Time Wipe
50% of 2 decks +43% synergy
Austere Command
50% of 2 decks +37% synergy
Supreme Verdict
50% of 2 decks +36% synergy
Blasphemous Act
50% of 2 decks +16% synergy
Fabricate
40% of 5 decks +34% synergy
Asinine Antics
33% of 3 decks +32% synergy
Universal Surveillance
25% of 4 decks +24% synergy
Acquire
20% of 5 decks +20% synergy
Walk the Aeons
20% of 5 decks +19% synergy
Blatant Thievery
20% of 5 decks +19% synergy
One with the Machine
20% of 5 decks +19% synergy
Reshape
20% of 5 decks +18% synergy
Thoughtcast
20% of 5 decks +17% synergy
Curse of the Swine
20% of 5 decks +16% synergy
Windfall
20% of 5 decks +7% synergy
Utility Artifacts
The Prydwen, Steel Flagship
100% of 1 decks +99% synergy
Nihil Spellbomb
100% of 1 decks +99% synergy
Swiftfoot Boots
60% of 5 decks +32% synergy
Thopter Shop
50% of 2 decks +49% synergy
Encroaching Mycosynth
50% of 4 decks +49% synergy
Parhelion II
50% of 2 decks +49% synergy
Salvaging Station
40% of 5 decks +40% synergy
Clock of Omens
40% of 5 decks +39% synergy
Nevinyrral's Disk
40% of 5 decks +39% synergy
Tamiyo's Logbook
33% of 3 decks +33% synergy
Brainstone
25% of 4 decks +25% synergy
Mnemonic Sphere
25% of 4 decks +25% synergy
Nettlecyst
25% of 4 decks +23% synergy
Shriekhorn
20% of 5 decks +20% synergy
Aligned Hedron Network
20% of 5 decks +20% synergy
Sai of the Shinobi
20% of 5 decks +20% synergy
Flayer Husk
20% of 5 decks +20% synergy
Soul Foundry
20% of 5 decks +20% synergy
Trinisphere
20% of 5 decks +19% synergy
Liquimetal Coating
20% of 5 decks +19% synergy
Blasting Station
20% of 5 decks +19% synergy
Torpor Orb
20% of 5 decks +19% synergy
Winter Orb
20% of 5 decks +19% synergy
Mirrorworks
20% of 5 decks +19% synergy
Mycosynth Lattice
20% of 5 decks +19% synergy
Voltaic Key
20% of 5 decks +19% synergy
Helm of Awakening
20% of 5 decks +19% synergy
Tormod's Crypt
20% of 5 decks +19% synergy
Trading Post
20% of 5 decks +19% synergy
Illusionist's Bracers
20% of 5 decks +19% synergy
Darksteel Forge
20% of 5 decks +19% synergy
Mishra's Bauble
20% of 5 decks +19% synergy
Aether Spellbomb
20% of 5 decks +19% synergy
Manifold Key
20% of 5 decks +18% synergy
Rings of Brighthearth
20% of 5 decks +18% synergy
Sculpting Steel
20% of 5 decks +18% synergy
Unwinding Clock
20% of 5 decks +17% synergy
Mystic Forge
20% of 5 decks +17% synergy
Strionic Resonator
20% of 5 decks +17% synergy
Phyrexian Altar
20% of 5 decks +16% synergy
Idol of Oblivion
20% of 5 decks +16% synergy
Lightning Greaves
20% of 5 decks -5% synergy
Enchantments
Curse of Oblivion
100% of 1 decks +100% synergy
Curse of Leeches
100% of 1 decks +100% synergy
Curse of Shallow Graves
100% of 1 decks +100% synergy
Curse of Thirst
100% of 1 decks +100% synergy
Cruel Reality
100% of 1 decks +100% synergy
Curse of Death's Hold
100% of 1 decks +100% synergy
Curse of Misfortunes
100% of 1 decks +100% synergy
Torment of Scarabs
100% of 1 decks +100% synergy
Trespasser's Curse
100% of 1 decks +99% synergy
Curse of Disturbance
100% of 1 decks +99% synergy
Runed Halo
50% of 2 decks +50% synergy
Temporary Lockdown
50% of 2 decks +50% synergy
Curse of Chaos
50% of 2 decks +50% synergy
Curse of Silence
50% of 2 decks +50% synergy
Curse of the Nightly Hunt
50% of 2 decks +50% synergy
The Fall of Lord Konda
50% of 2 decks +50% synergy
Curse of Obsession
50% of 2 decks +50% synergy
Curse of Shaken Faith
50% of 2 decks +50% synergy
Soul Snare
50% of 2 decks +49% synergy
Pariah
50% of 2 decks +49% synergy
Solitary Confinement
50% of 2 decks +49% synergy
Seal of Cleansing
50% of 2 decks +48% synergy
Elspeth Conquers Death
50% of 2 decks +48% synergy
Aura of Silence
50% of 2 decks +48% synergy
Curse of Opulence
50% of 2 decks +46% synergy
Imprisoned in the Moon
40% of 5 decks +36% synergy
Proft's Eidetic Memory
33% of 3 decks +31% synergy
Curse of Surveillance
25% of 4 decks +25% synergy
Curse of Unbinding
25% of 4 decks +24% synergy
Dress Down
25% of 4 decks +23% synergy
Ensoul Artifact
20% of 5 decks +20% synergy
Cast Through Time
20% of 5 decks +20% synergy
Curse of the Bloody Tome
20% of 5 decks +20% synergy
Curse of Echoes
20% of 5 decks +20% synergy
Seal of Removal
20% of 5 decks +19% synergy
Curse of Verbosity
20% of 5 decks +19% synergy
Efficient Construction
20% of 5 decks +19% synergy
Paradox Haze
20% of 5 decks +18% synergy
Mirrormade
20% of 5 decks +18% synergy
Retreat to Coralhelm
20% of 5 decks +18% synergy
Mechanized Production
20% of 5 decks +17% synergy
Training Grounds
20% of 5 decks +17% synergy
Thopter Spy Network
20% of 5 decks +16% synergy
Planeswalkers
Tezzeret, Betrayer of Flesh
25% of 4 decks +24% synergy
Will Kenrith
20% of 5 decks +20% synergy
Ugin, the Spirit Dragon
20% of 5 decks +18% synergy
Tezzeret the Seeker
20% of 5 decks +17% synergy
Utility Lands
Monumental Henge
100% of 1 decks +96% synergy
Buried Ruin
60% of 5 decks +55% synergy
Reliquary Tower
60% of 5 decks +31% synergy
Desert of the Fervent
50% of 2 decks +49% synergy
Desolate Lighthouse
50% of 2 decks +46% synergy
Forgotten Cave
50% of 2 decks +45% synergy
Archway of Innovation
50% of 2 decks +45% synergy
Great Furnace
50% of 2 decks +44% synergy
Hall of Heliod's Generosity
50% of 2 decks +43% synergy
Thespian's Stage
40% of 5 decks +37% synergy
Lonely Sandbar
40% of 5 decks +37% synergy
Scavenger Grounds
40% of 5 decks +37% synergy
Seat of the Synod
40% of 5 decks +34% synergy
Temple of the False God
40% of 5 decks +30% synergy
Roadside Reliquary
25% of 4 decks +24% synergy
Blighted Cataract
20% of 5 decks +20% synergy
Phyrexia's Core
20% of 5 decks +20% synergy
Cryptic Caves
20% of 5 decks +19% synergy
Sanctum of Eternity
20% of 5 decks +19% synergy
Mirrorpool
20% of 5 decks +19% synergy
Mishra's Factory
20% of 5 decks +19% synergy
Desert of the Mindful
20% of 5 decks +19% synergy
Faerie Conclave
20% of 5 decks +19% synergy
Radiant Fountain
20% of 5 decks +19% synergy
Tolaria West
20% of 5 decks +19% synergy
Urza's Power Plant
20% of 5 decks +18% synergy
Urza's Mine
20% of 5 decks +18% synergy
Urza's Tower
20% of 5 decks +18% synergy
Riptide Laboratory
20% of 5 decks +18% synergy
Maze of Ith
20% of 5 decks +17% synergy
Halimar Depths
20% of 5 decks +17% synergy
War Room
20% of 5 decks +14% synergy
Mystic Sanctuary
20% of 5 decks +8% synergy
Mana Artifacts
Dimir Signet
100% of 1 decks +70% synergy
Talisman of Dominance
100% of 1 decks +69% synergy
Thought Vessel
60% of 5 decks +43% synergy
Sol Ring
60% of 5 decks -24% synergy
Azorius Signet
50% of 2 decks +24% synergy
Izzet Signet
50% of 2 decks +22% synergy
Darksteel Ingot
40% of 5 decks +39% synergy
Worn Powerstone
40% of 5 decks +37% synergy
Thran Dynamo
40% of 5 decks +35% synergy
Commander's Sphere
40% of 5 decks +25% synergy
Endurance Bobblehead
33% of 3 decks +33% synergy
Decanter of Endless Water
25% of 4 decks +20% synergy
Manalith
20% of 5 decks +20% synergy
Mana Geode
20% of 5 decks +20% synergy
Fractured Powerstone
20% of 5 decks +20% synergy
Lotus Bloom
20% of 5 decks +19% synergy
Unstable Obelisk
20% of 5 decks +19% synergy
Dreamstone Hedron
20% of 5 decks +19% synergy
Prismatic Lens
20% of 5 decks +19% synergy
Caged Sun
20% of 5 decks +18% synergy
Basalt Monolith
20% of 5 decks +17% synergy
Hedron Archive
20% of 5 decks +17% synergy
Gilded Lotus
20% of 5 decks +17% synergy
Everflowing Chalice
20% of 5 decks +15% synergy
Sky Diamond
20% of 5 decks +15% synergy
Midnight Clock
20% of 5 decks +15% synergy
Arcane Signet
20% of 5 decks -52% synergy
Lands
Crypt of the Eternals
100% of 1 decks +99% synergy
Rakdos Guildgate
100% of 1 decks +96% synergy
Dimir Guildgate
100% of 1 decks +95% synergy
Izzet Guildgate
100% of 2 decks +95% synergy
Dismal Backwater
100% of 1 decks +93% synergy
Razortide Bridge
100% of 2 decks +93% synergy
Irrigated Farmland
100% of 2 decks +92% synergy
Rakdos Carnarium
100% of 1 decks +85% synergy
Darkwater Catacombs
100% of 1 decks +85% synergy
Port Town
100% of 2 decks +84% synergy
Seething Landscape
100% of 1 decks +84% synergy
Izzet Boilerworks
100% of 2 decks +84% synergy
Temple of Enlightenment
100% of 2 decks +84% synergy
Choked Estuary
100% of 1 decks +83% synergy
Temple of Epiphany
100% of 2 decks +82% synergy
Crumbling Necropolis
100% of 1 decks +69% synergy
Prairie Stream
100% of 2 decks +66% synergy
Sunken Hollow
100% of 1 decks +65% synergy
Myriad Landscape
60% of 5 decks +40% synergy
Power Depot
50% of 4 decks +49% synergy
Highland Lake
50% of 2 decks +48% synergy
Glacial Floodplain
50% of 2 decks +47% synergy
Idyllic Beachfront
50% of 2 decks +46% synergy
Seachrome Coast
50% of 2 decks +45% synergy
Tranquil Cove
50% of 2 decks +43% synergy
Swiftwater Cliffs
50% of 2 decks +43% synergy
Skycloud Expanse
50% of 2 decks +37% synergy
Azorius Chancery
50% of 2 decks +35% synergy
Glacial Fortress
50% of 2 decks +25% synergy
Sea of Clouds
50% of 2 decks +24% synergy
Sulfur Falls
50% of 2 decks +20% synergy
Spire of Industry
40% of 5 decks +37% synergy
Command Tower
40% of 5 decks -34% synergy
Maestros Theater
25% of 4 decks +23% synergy
Warped Landscape
20% of 5 decks +20% synergy
Rupture Spire
20% of 5 decks +20% synergy
Esper Panorama
20% of 5 decks +20% synergy
Grixis Panorama
20% of 5 decks +20% synergy
Ash Barrens
20% of 5 decks +15% synergy
Unclaimed Territory
20% of 5 decks +15% synergy
Reflecting Pool
20% of 5 decks +15% synergy
Terramorphic Expanse
20% of 5 decks +4% synergy
Evolving Wilds
20% of 5 decks -1% synergy
Path of Ancestry
20% of 5 decks -1% synergy
Exotic Orchard
20% of 5 decks -16% synergy