Phantom Steed + Time Stretch + Eternal Witness
Phantom Steed
Time Stretch
Eternal Witness
Requires
Phantom Steed must be on the battlefield.
Time Stretch must be in hand.
Eternal Witness must be in exile (exiled by Phantom Steed).
Mana needed: 
Steps
- Cast Time Stretch, taking an extra two turns after this one.
- Attack with Phantom Steed.
- Phantom Steed triggers, creating a token copy of Eternal Witness that is tapped and attacking.
- Eternal Witness enters, returning Time Stretch from your graveyard to your hand.
- Pass the turn.
- Repeat.
Results
Infinite turns.
Top Commanders
Roon of the Hidden Realm
0.03% of 3140 decks
1 decks
Muldrotha, the Gravetide
0.01% of 17383 decks
1 decks
Game Changers
Demonic Tutor
100% of 1 decks
+79% synergy
Urza, Lord High Artificer
50% of 2 decks
+47% synergy
Fierce Guardianship
50% of 2 decks
+32% synergy
Cyclonic Rift
50% of 2 decks
+24% synergy
Rhystic Study
50% of 2 decks
+23% synergy
Creatures
Niko, Light of Hope
100% of 1 decks
+100% synergy
Beza, the Bounding Spring
100% of 1 decks
+99% synergy
Hare Apparent
100% of 1 decks
+99% synergy
Vile Entomber
100% of 1 decks
+98% synergy
Kykar, Zephyr Awakener
100% of 1 decks
+98% synergy
Cloudblazer
100% of 1 decks
+97% synergy
Brago, King Eternal
100% of 1 decks
+97% synergy
Farhaven Elf
100% of 2 decks
+97% synergy
Peregrine Drake
100% of 2 decks
+97% synergy
Archaeomancer
100% of 2 decks
+96% synergy
Ravenous Chupacabra
100% of 1 decks
+96% synergy
Karmic Guide
100% of 1 decks
+96% synergy
Plaguecrafter
100% of 1 decks
+95% synergy
Soulherder
100% of 1 decks
+95% synergy
Mulldrifter
100% of 2 decks
+95% synergy
Sun Titan
100% of 1 decks
+91% synergy
Reclamation Sage
100% of 2 decks
+90% synergy
Oboro Breezecaller
50% of 2 decks
+50% synergy
Salvager of Secrets
50% of 2 decks
+50% synergy
Stone-Seeder Hierophant
50% of 2 decks
+50% synergy
Walking Atlas
50% of 2 decks
+49% synergy
Drafna, Founder of Lat-Nam
50% of 2 decks
+49% synergy
Mnemonic Wall
50% of 2 decks
+49% synergy
Wall of Blossoms
50% of 2 decks
+49% synergy
Kiora, the Rising Tide
50% of 2 decks
+48% synergy
Clifftop Lookout
50% of 2 decks
+48% synergy
Mystic Snake
50% of 2 decks
+48% synergy
Venser, Shaper Savant
50% of 2 decks
+48% synergy
Progenitor Mimic
50% of 2 decks
+48% synergy
Aether Channeler
50% of 2 decks
+48% synergy
Trinket Mage
50% of 2 decks
+48% synergy
Deadeye Navigator
50% of 2 decks
+48% synergy
Dour Port-Mage
50% of 2 decks
+48% synergy
Spore Frog
50% of 2 decks
+47% synergy
Ashaya, Soul of the Wild
50% of 2 decks
+47% synergy
Kodama of the East Tree
50% of 2 decks
+47% synergy
Emry, Lurker of the Loch
50% of 2 decks
+46% synergy
Displacer Kitten
50% of 2 decks
+45% synergy
Etherium Sculptor
50% of 2 decks
+45% synergy
Cankerbloom
50% of 2 decks
+44% synergy
Wood Elves
50% of 2 decks
+44% synergy
Coiling Oracle
50% of 2 decks
+43% synergy
Rampaging Baloths
50% of 2 decks
+43% synergy
Hullbreaker Horror
50% of 2 decks
+43% synergy
Instants
Professor's Warning
100% of 1 decks
+100% synergy
Unwanted Remake
100% of 1 decks
+99% synergy
Flicker of Fate
100% of 1 decks
+99% synergy
Lim-Dûl's Vault
100% of 1 decks
+96% synergy
Eerie Interlude
100% of 1 decks
+96% synergy
Cabal Ritual
100% of 1 decks
+95% synergy
Ghostly Flicker
100% of 2 decks
+95% synergy
Ephemerate
100% of 1 decks
+94% synergy
Entomb
100% of 1 decks
+93% synergy
Eladamri's Call
100% of 1 decks
+90% synergy
Dark Ritual
100% of 1 decks
+77% synergy
Swords to Plowshares
100% of 1 decks
+37% synergy
Kindred Summons
50% of 2 decks
+49% synergy
Disallow
50% of 2 decks
+48% synergy
Obscuring Haze
50% of 2 decks
+48% synergy
Whir of Invention
50% of 2 decks
+47% synergy
Strix Serenade
50% of 2 decks
+46% synergy
Fact or Fiction
50% of 2 decks
+44% synergy
Pact of Negation
50% of 2 decks
+43% synergy
Swan Song
50% of 2 decks
+34% synergy
Growth Spiral
50% of 2 decks
+28% synergy
Heroic Intervention
50% of 2 decks
+20% synergy
Counterspell
50% of 2 decks
+8% synergy
Sorceries
Final Parting
100% of 1 decks
+98% synergy
Time Warp
100% of 2 decks
+98% synergy
Capture of Jingzhou
50% of 2 decks
+49% synergy
Lunar Insight
50% of 2 decks
+49% synergy
Walk the Aeons
50% of 2 decks
+49% synergy
Temporal Manipulation
50% of 2 decks
+49% synergy
Solve the Equation
50% of 2 decks
+46% synergy
Fabricate
50% of 2 decks
+44% synergy
Three Visits
50% of 2 decks
+26% synergy
Nature's Lore
50% of 2 decks
+18% synergy
Utility Artifacts
Illusionist's Bracers
50% of 2 decks
+49% synergy
Rings of Brighthearth
50% of 2 decks
+48% synergy
Birthing Pod
50% of 2 decks
+48% synergy
Aetherflux Reservoir
50% of 2 decks
+46% synergy
Lifecrafter's Bestiary
50% of 2 decks
+46% synergy
Panharmonicon
50% of 2 decks
+46% synergy
Lotus Petal
50% of 2 decks
+43% synergy
Ashnod's Altar
50% of 2 decks
+43% synergy
Wayfarer's Bauble
50% of 2 decks
+41% synergy
Skullclamp
50% of 2 decks
+38% synergy
Enchantments
Omen of the Dead
100% of 1 decks
+100% synergy
Teleportation Circle
100% of 1 decks
+96% synergy
Kaya's Ghostform
100% of 1 decks
+96% synergy
Cathars' Crusade
100% of 1 decks
+95% synergy
Guardian Project
100% of 2 decks
+92% synergy
Zendikar Resurgent
50% of 2 decks
+48% synergy
Training Grounds
50% of 2 decks
+47% synergy
Wilderness Reclamation
50% of 2 decks
+46% synergy
Beastmaster Ascension
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+45% synergy
Mystic Remora
50% of 2 decks
+33% synergy
Planeswalkers
Tezzeret, Betrayer of Flesh
50% of 2 decks
+49% synergy
Utility Lands
Mystic Sanctuary
100% of 2 decks
+88% synergy
Tolaria West
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+49% synergy
Inventors' Fair
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+46% synergy
Alchemist's Refuge
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+43% synergy
Mosswort Bridge
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+39% synergy
Mana Artifacts
Selesnya Signet
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+92% synergy
Azorius Signet
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+75% synergy
Sol Ring
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Basalt Monolith
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+47% synergy
Mox Amber
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+46% synergy
Simic Signet
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+36% synergy
Thought Vessel
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Arcane Signet
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Lands
Azorius Guildgate
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+96% synergy
Selesnya Guildgate
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Selesnya Sanctuary
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+86% synergy
Azorius Chancery
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Shipwreck Marsh
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Undergrowth Stadium
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Morphic Pool
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Drowned Catacomb
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Hinterland Harbor
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Sunken Hollow
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Temple Garden
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+60% synergy
Watery Grave
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Overgrown Tomb
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+58% synergy
Command Tower
100% of 2 decks
+26% synergy
Simic Guildgate
50% of 2 decks
+44% synergy
Fabled Passage
50% of 2 decks
+41% synergy
Flooded Strand
50% of 2 decks
+39% synergy
Scalding Tarn
50% of 2 decks
+39% synergy
Marsh Flats
50% of 2 decks
+39% synergy
Verdant Catacombs
50% of 2 decks
+39% synergy
Polluted Delta
50% of 2 decks
+39% synergy
Misty Rainforest
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+38% synergy
Dreamroot Cascade
50% of 2 decks
+31% synergy
Simic Growth Chamber
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+31% synergy
Path of Ancestry
50% of 2 decks
+28% synergy
Rejuvenating Springs
50% of 2 decks
+22% synergy
Breeding Pool
50% of 2 decks
+10% synergy