Extravagant Replication + Eternal Witness + Time Warp

Extravagant Replication
Eternal Witness
Time Warp

Requires
Extravagant Replication must be on the battlefield. Eternal Witness must be on the battlefield. Time Warp must be in hand. You have enough mana to cast Time Warp each turn.
Steps
  1. Cast Time Warp by paying its mana cost, causing you to take an extra turn after this one.
  2. Move to your next turn.
  3. At the beginning of your upkeep, Extravagant Replication triggers, creating a token copy of Eternal Witness.
  4. When the Eternal Witness token enters the battlefield, it triggers, returning Time Warp from your graveyard to your hand.
  5. Repeat.
Results
Infinite turns.

Riku of Two Reflections
0.23% of 4868 decks 11 decks
Adrix and Nev, Twincasters
0.07% of 6727 decks 5 decks
Aesi, Tyrant of Gyre Strait
0.04% of 10609 decks 4 decks
Esix, Fractal Bloom
0.06% of 3225 decks 2 decks
Koma, Cosmos Serpent
0.04% of 5509 decks 2 decks
Roon of the Hidden Realm
0.03% of 3161 decks 1 decks
Go-Shintai of Life's Origin
0.01% of 15183 decks 1 decks
Kenrith, the Returned King
0.00% of 21933 decks 1 decks
Gimbal, Gremlin Prodigy
0.03% of 2922 decks 1 decks
The First Doctor // Susan Foreman
0.55% of 182 decks 1 decks
Vorel of the Hull Clade
0.05% of 2086 decks 1 decks
Kyodai, Soul of Kamigawa
0.05% of 1879 decks 1 decks
New Cards
Mirror Room // Fractured Realm
60% of 5 decks +55% synergy
Overlord of the Hauntwoods
33% of 9 decks +30% synergy
High Synergy Cards
Archdruid's Charm
57% of 14 decks +50% synergy
Rite of Replication
52% of 31 decks +48% synergy
Springheart Nantuko
55% of 11 decks +48% synergy
Progenitor Mimic
45% of 31 decks +43% synergy
Harmonic Prodigy
47% of 15 decks +43% synergy
Biovisionary
42% of 31 decks +41% synergy
Season of Weaving
44% of 9 decks +41% synergy
Snapping Voidcraw
44% of 9 decks +40% synergy
Sakashima of a Thousand Faces
42% of 31 decks +39% synergy
Double Vision
40% of 15 decks +38% synergy
Top Cards
Cultivate
58% of 31 decks +12% synergy
Kodama's Reach
55% of 31 decks +23% synergy
Spark Double
45% of 31 decks +38% synergy
Mystical Tutor
45% of 31 decks +30% synergy
Counterspell
45% of 31 decks +2% synergy
Worldly Tutor
42% of 31 decks +28% synergy
Goblin Electromancer
40% of 15 decks +31% synergy
Farseek
39% of 31 decks +5% synergy
Rampant Growth
39% of 31 decks +4% synergy
Double Major
35% of 31 decks +32% synergy
Creatures
Dack's Duplicate
33% of 15 decks +33% synergy
Brudiclad, Telchor Engineer
33% of 15 decks +30% synergy
Fanatic of Rhonas
33% of 12 decks +24% synergy
Third Path Iconoclast
31% of 13 decks +23% synergy
Hornet Queen
29% of 31 decks +26% synergy
Adrix and Nev, Twincasters
29% of 31 decks +24% synergy
Birds of Paradise
29% of 31 decks +2% synergy
Dualcaster Mage
27% of 15 decks +22% synergy
Storm-Kiln Artist
27% of 15 decks +17% synergy
Sakashima the Impostor
26% of 31 decks +24% synergy
Coiling Oracle
26% of 31 decks +18% synergy
Avenger of Zendikar
26% of 31 decks +16% synergy
Sakura-Tribe Elder
26% of 31 decks +7% synergy
Delighted Halfling
23% of 22 decks +9% synergy
Esix, Fractal Bloom
23% of 31 decks +21% synergy
Clever Impersonator
23% of 31 decks +20% synergy
Nyxbloom Ancient
23% of 31 decks +19% synergy
Scute Swarm
23% of 31 decks +13% synergy
Reclamation Sage
23% of 31 decks +12% synergy
Rattleclaw Mystic
20% of 15 decks +17% synergy
Goblin Anarchomancer
20% of 15 decks +6% synergy
Glasspool Mimic
19% of 31 decks +16% synergy
Archaeomancer
19% of 31 decks +16% synergy
Consecrated Sphinx
19% of 31 decks +14% synergy
Phyrexian Metamorph
19% of 31 decks +12% synergy
Peregrin Took
18% of 22 decks +13% synergy
Ojer Pakpatiq, Deepest Epoch
18% of 17 decks +16% synergy
Nissa, Resurgent Animist
17% of 24 decks +15% synergy
Timestream Navigator
16% of 31 decks +15% synergy
Jin-Gitaxias, Progress Tyrant
16% of 31 decks +13% synergy
Peregrine Drake
16% of 31 decks +13% synergy
Koma, Cosmos Serpent
16% of 31 decks +11% synergy
Craterhoof Behemoth
16% of 31 decks +10% synergy
Wood Elves
16% of 31 decks +9% synergy
Tireless Provisioner
16% of 31 decks +5% synergy
Stunt Double
13% of 31 decks +12% synergy
Bramble Sovereign
13% of 31 decks +12% synergy
Clone
13% of 31 decks +12% synergy
Mirrorhall Mimic
13% of 31 decks +12% synergy
Astral Dragon
13% of 31 decks +11% synergy
Elvish Reclaimer
13% of 31 decks +11% synergy
Quirion Ranger
13% of 31 decks +11% synergy
Myr Battlesphere
13% of 31 decks +11% synergy
Tendershoot Dryad
13% of 31 decks +10% synergy
Timeless Witness
13% of 31 decks +10% synergy
Ashaya, Soul of the Wild
13% of 31 decks +10% synergy
Acidic Slime
13% of 31 decks +9% synergy
Mulldrifter
13% of 31 decks +7% synergy
Rampaging Baloths
13% of 31 decks +6% synergy
Hullbreaker Horror
13% of 31 decks +6% synergy
Instants
Second Harvest
35% of 31 decks +31% synergy
Chaos Warp
33% of 15 decks +1% synergy
Beast Within
32% of 31 decks -6% synergy
Cackling Counterpart
29% of 31 decks +28% synergy
Growth Spiral
29% of 31 decks +7% synergy
Lightning Bolt
27% of 15 decks +16% synergy
Chord of Calling
26% of 31 decks +20% synergy
Mana Drain
26% of 31 decks +11% synergy
Brainstorm
26% of 31 decks +5% synergy
Cyclonic Rift
26% of 31 decks -2% synergy
Three Steps Ahead
25% of 12 decks +21% synergy
See Double
21% of 24 decks +19% synergy
Narset's Reversal
19% of 31 decks +16% synergy
Krosan Grip
19% of 31 decks +12% synergy
Rapid Hybridization
19% of 31 decks +10% synergy
Crop Rotation
19% of 31 decks +10% synergy
Negate
19% of 31 decks -3% synergy
Heroic Intervention
19% of 31 decks -10% synergy
Nexus of Fate
16% of 31 decks +14% synergy
Harrow
16% of 31 decks +7% synergy
Force of Will
16% of 31 decks +5% synergy
Pongify
16% of 31 decks +5% synergy
Perplexing Test
13% of 31 decks +11% synergy
Force of Negation
13% of 31 decks +4% synergy
Swan Song
13% of 31 decks -4% synergy
An Offer You Can't Refuse
13% of 31 decks -8% synergy
Elminster's Simulacrum
10% of 31 decks +9% synergy
Theoretical Duplication
10% of 31 decks +9% synergy
Rewind
10% of 31 decks +7% synergy
Noxious Revival
10% of 31 decks +4% synergy
Veil of Summer
10% of 31 decks +4% synergy
Pact of Negation
10% of 31 decks +2% synergy
Opt
10% of 31 decks +0% synergy
Fierce Guardianship
10% of 31 decks -8% synergy
Sorceries
Mythos of Illuna
33% of 15 decks +32% synergy
Capture of Jingzhou
32% of 31 decks +32% synergy
Quantum Misalignment
29% of 17 decks +27% synergy
Quasiduplicate
29% of 31 decks +28% synergy
Irenicus's Vile Duplication
29% of 31 decks +25% synergy
Three Visits
29% of 31 decks +4% synergy
Nature's Lore
29% of 31 decks -3% synergy
Vandalblast
27% of 15 decks +11% synergy
Blasphemous Act
27% of 15 decks -7% synergy
Temporal Manipulation
26% of 31 decks +25% synergy
Skyshroud Claim
26% of 31 decks +17% synergy
Awaken the Woods
25% of 28 decks +21% synergy
Finale of Devastation
23% of 31 decks +14% synergy
Replication Technique
19% of 31 decks +19% synergy
Green Sun's Zenith
19% of 31 decks +13% synergy
Nanogene Conversion
18% of 17 decks +16% synergy
Walk the Aeons
16% of 31 decks +15% synergy
Croaking Counterpart
16% of 31 decks +14% synergy
Ezuri's Predation
16% of 31 decks +13% synergy
Bala Ged Recovery
16% of 31 decks +7% synergy
Temporal Mastery
13% of 31 decks +11% synergy
Natural Order
13% of 31 decks +11% synergy
Curse of the Swine
13% of 31 decks +9% synergy
Sea Gate Restoration
13% of 31 decks +8% synergy
Beacon of Tomorrows
10% of 31 decks +9% synergy
Clone Legion
10% of 31 decks +8% synergy
Regrowth
10% of 31 decks +6% synergy
Harmonize
10% of 31 decks +1% synergy
Utility Artifacts
Mirror Box
29% of 31 decks +28% synergy
Helm of the Host
29% of 31 decks +26% synergy
Twinning Staff
23% of 31 decks +21% synergy
Lightning Greaves
23% of 31 decks -3% synergy
Swiftfoot Boots
23% of 31 decks -5% synergy
Conjurer's Closet
19% of 31 decks +17% synergy
Panharmonicon
16% of 31 decks +12% synergy
Lithoform Engine
13% of 31 decks +11% synergy
Isochron Scepter
13% of 31 decks +10% synergy
Idol of Oblivion
13% of 31 decks +8% synergy
The One Ring
12% of 25 decks +3% synergy
Primal Amulet
10% of 31 decks +9% synergy
Mirage Mirror
10% of 31 decks +8% synergy
Combine Chrysalis
10% of 31 decks +8% synergy
Bootleggers' Stash
10% of 31 decks +7% synergy
Expedition Map
10% of 31 decks +6% synergy
Enchantments
Sterling Grove
60% of 5 decks +52% synergy
Mirari's Wake
60% of 5 decks +46% synergy
Parallel Lives
29% of 31 decks +22% synergy
Rhystic Study
29% of 31 decks +1% synergy
Doubling Season
26% of 31 decks +17% synergy
Thousand-Year Storm
20% of 15 decks +15% synergy
Swarm Intelligence
19% of 31 decks +18% synergy
Tribute to the World Tree
17% of 24 decks +8% synergy
Mana Reflection
16% of 31 decks +14% synergy
Up the Beanstalk
15% of 20 decks +10% synergy
Endless Evil
13% of 31 decks +12% synergy
Mirrormade
13% of 31 decks +11% synergy
Defense of the Heart
13% of 31 decks +10% synergy
Wild Growth
13% of 31 decks +2% synergy
Propaganda
13% of 31 decks +1% synergy
Mystic Remora
13% of 31 decks -5% synergy
Awakening Zone
10% of 31 decks +7% synergy
Leyline of Anticipation
10% of 31 decks +5% synergy
Bear Umbra
10% of 31 decks +5% synergy
Battles
Planeswalkers
Garruk, Primal Hunter
16% of 31 decks +13% synergy
Tamiyo, Compleated Sage
10% of 31 decks +8% synergy
Oko, Thief of Crowns
10% of 31 decks +4% synergy
Utility Lands
Reliquary Tower
65% of 31 decks +35% synergy
Shifting Woodland
42% of 12 decks +32% synergy
Boseiju, Who Endures
35% of 31 decks +16% synergy
Mystic Sanctuary
29% of 31 decks +17% synergy
Yavimaya, Cradle of Growth
23% of 31 decks +13% synergy
Dryad Arbor
19% of 31 decks +15% synergy
Gaea's Cradle
19% of 31 decks +14% synergy
Urza's Saga
19% of 31 decks +12% synergy
Ancient Tomb
19% of 31 decks +9% synergy
Oboro, Palace in the Clouds
13% of 31 decks +12% synergy
Bonders' Enclave
13% of 31 decks +10% synergy
Nykthos, Shrine to Nyx
13% of 31 decks +7% synergy
Alchemist's Refuge
13% of 31 decks +6% synergy
Temple of the False God
13% of 31 decks +3% synergy
Otawara, Soaring City
13% of 31 decks -4% synergy
Tolaria West
10% of 31 decks +8% synergy
Wirewood Lodge
10% of 31 decks +8% synergy
Lumbering Falls
10% of 31 decks +7% synergy
Field of the Dead
10% of 31 decks +6% synergy
Command Beacon
10% of 31 decks +5% synergy
Mosswort Bridge
10% of 31 decks -1% synergy
Mana Artifacts
Sol Ring
84% of 31 decks -1% synergy
Arcane Signet
52% of 31 decks -21% synergy
Chromatic Lantern
29% of 31 decks +19% synergy
Talisman of Creativity
27% of 15 decks -2% synergy
Talisman of Curiosity
26% of 31 decks +13% synergy
Simic Signet
23% of 31 decks +8% synergy
Talisman of Impulse
20% of 15 decks +11% synergy
Gruul Signet
20% of 15 decks +8% synergy
Izzet Signet
20% of 15 decks -8% synergy
Thought Vessel
16% of 31 decks -1% synergy
Gilded Lotus
13% of 31 decks +10% synergy
Decanter of Endless Water
13% of 31 decks +8% synergy
Commander's Sphere
13% of 31 decks -2% synergy
Machine God's Effigy
11% of 28 decks +9% synergy
Fellwar Stone
10% of 31 decks -11% synergy
Lands
Command Tower
68% of 31 decks -6% synergy
Breeding Pool
65% of 31 decks +24% synergy
Canopy Vista
60% of 5 decks +24% synergy
Temple Garden
60% of 5 decks +20% synergy
Hedge Maze
53% of 15 decks +39% synergy
Rootbound Crag
53% of 15 decks +30% synergy
Ketria Triome
53% of 15 decks +21% synergy
Hinterland Harbor
52% of 31 decks +24% synergy
Rejuvenating Springs
52% of 31 decks +23% synergy
Simic Growth Chamber
48% of 31 decks +29% synergy
Frontier Bivouac
47% of 15 decks +19% synergy
Sulfur Falls
47% of 15 decks +16% synergy
Stomping Ground
47% of 15 decks +6% synergy
Misty Rainforest
45% of 31 decks +33% synergy
Horizon of Progress
44% of 9 decks +43% synergy
Windswept Heath
35% of 31 decks +25% synergy
Talon Gates of Madara
33% of 9 decks +30% synergy
Urza's Cave
33% of 12 decks +29% synergy
Cinder Glade
33% of 15 decks -5% synergy
Steam Vents
33% of 15 decks -6% synergy
Wooded Foothills
32% of 31 decks +22% synergy
Myriad Landscape
32% of 31 decks +13% synergy
Flooded Strand
29% of 31 decks +18% synergy
Scalding Tarn
29% of 31 decks +18% synergy
Tropical Island
29% of 31 decks +15% synergy
Dreamroot Cascade
29% of 31 decks +10% synergy
Stormcarved Coast
27% of 15 decks +9% synergy
Rockfall Vale
27% of 15 decks +5% synergy
Spire Garden
27% of 15 decks +2% synergy
Training Center
27% of 15 decks -1% synergy
Polluted Delta
26% of 31 decks +15% synergy
Verdant Catacombs
26% of 31 decks +14% synergy
Flooded Grove
26% of 31 decks +13% synergy
Temple of Mystery
23% of 31 decks +5% synergy
Fire-Lit Thicket
20% of 15 decks +15% synergy
Gruul Turf
20% of 15 decks +4% synergy
Izzet Boilerworks
20% of 15 decks +4% synergy
Yavimaya Coast
19% of 31 decks -7% synergy
Exotic Orchard
19% of 31 decks -16% synergy
Rimewood Falls
16% of 31 decks +11% synergy
Waterlogged Grove
16% of 31 decks +9% synergy
Vineglimmer Snarl
16% of 31 decks +6% synergy
Tangled Islet
14% of 29 decks +6% synergy
Blighted Woodland
13% of 31 decks +7% synergy
Gemstone Caverns
10% of 31 decks +5% synergy
Reflecting Pool
10% of 31 decks +4% synergy
Path of Ancestry
10% of 31 decks -12% synergy