Progenitor Mimic + Time Warp + Eternal Witness

Progenitor Mimic
Time Warp
Eternal Witness

Requires
Progenitor Mimic must be on the battlefield. Time Warp must be on the battlefield. Eternal Witness must be on the battlefield. Enough mana available to cast the extra turn spell each turn. Progenitor Mimic is a copy of Eternal Witness.
Steps
  1. Cast Time Warp by paying its mana cost, taking an extra turn after this one.
  2. At the beginning of your next upkeep, Progenitor Mimic triggers, creating a token copy of Eternal Witness.
  3. When the token Eternal Witness enters the battlefield, it triggers itself, returning Time Warp from your graveyard to your hand.
  4. Repeat.
Results
Infinite turns.

Riku of Two Reflections
1.87% of 4877 decks 91 decks
Roon of the Hidden Realm
0.60% of 3192 decks 19 decks
Maelstrom Wanderer
0.27% of 5914 decks 16 decks
Adrix and Nev, Twincasters
0.19% of 6707 decks 13 decks
Rashmi, Eternities Crafter
0.60% of 2009 decks 12 decks
Yarok, the Desecrated
0.11% of 10460 decks 11 decks
Prime Speaker Zegana
1.33% of 675 decks 9 decks
Koma, Cosmos Serpent
0.13% of 5457 decks 7 decks
Imoti, Celebrant of Bounty
0.13% of 4526 decks 6 decks
Aesi, Tyrant of Gyre Strait
0.05% of 10570 decks 5 decks
Muldrotha, the Gravetide
0.03% of 15570 decks 4 decks
Kruphix, God of Horizons
0.10% of 3133 decks 3 decks
Animar, Soul of Elements
0.02% of 16060 decks 3 decks
Volo, Guide to Monsters
0.04% of 7597 decks 3 decks
Grolnok, the Omnivore
0.06% of 5162 decks 3 decks
Momir Vig, Simic Visionary
0.29% of 1019 decks 3 decks
Felix Five-Boots
0.09% of 3527 decks 3 decks
The Mimeoplasm
0.05% of 5846 decks 3 decks
New Cards
Mirror Room // Fractured Realm
27% of 11 decks +22% synergy
Overlord of the Hauntwoods
15% of 26 decks +12% synergy
High Synergy Cards
Soulherder
61% of 36 decks +56% synergy
Teleportation Circle
55% of 33 decks +51% synergy
Rite of Replication
47% of 280 decks +44% synergy
Ephemerate
47% of 36 decks +41% synergy
Brago, King Eternal
44% of 39 decks +40% synergy
Elesh Norn, Mother of Machines
45% of 29 decks +40% synergy
Clever Impersonator
39% of 280 decks +37% synergy
Deadeye Navigator
38% of 280 decks +35% synergy
Eerie Interlude
38% of 39 decks +34% synergy
Yorion, Sky Nomad
36% of 36 decks +34% synergy
Top Cards
Cultivate
64% of 280 decks +17% synergy
Cyclonic Rift
57% of 280 decks +29% synergy
Swords to Plowshares
56% of 39 decks -6% synergy
Counterspell
55% of 280 decks +12% synergy
Kodama's Reach
54% of 280 decks +22% synergy
Beast Within
50% of 280 decks +12% synergy
Blasphemous Act
46% of 127 decks +13% synergy
Farseek
45% of 280 decks +11% synergy
Aura Shards
41% of 39 decks +32% synergy
Sun Titan
41% of 39 decks +31% synergy
Creatures
Birds of Paradise
40% of 280 decks +13% synergy
Avenger of Zendikar
40% of 280 decks +31% synergy
Coiling Oracle
39% of 280 decks +31% synergy
Emiel the Blessed
36% of 36 decks +33% synergy
Karmic Guide
36% of 39 decks +31% synergy
Etali, Primal Conqueror
34% of 67 decks +23% synergy
Reclamation Sage
34% of 280 decks +23% synergy
Dockside Extortionist
33% of 123 decks +21% synergy
Dualcaster Mage
33% of 127 decks +28% synergy
Mulldrifter
32% of 280 decks +27% synergy
Phyrexian Metamorph
32% of 280 decks +26% synergy
Felidar Guardian
32% of 37 decks +30% synergy
Reveillark
31% of 39 decks +29% synergy
Seedborn Muse
30% of 280 decks +22% synergy
Terror of the Peaks
29% of 120 decks +24% synergy
Kiki-Jiki, Mirror Breaker
29% of 127 decks +26% synergy
Spark Double
29% of 269 decks +22% synergy
Cloudblazer
29% of 38 decks +26% synergy
Sakura-Tribe Elder
29% of 280 decks +10% synergy
Storm-Kiln Artist
29% of 115 decks +20% synergy
Peregrine Drake
28% of 280 decks +25% synergy
Archaeomancer
28% of 280 decks +24% synergy
Harmonic Prodigy
27% of 114 decks +23% synergy
Biovisionary
27% of 280 decks +26% synergy
Acidic Slime
27% of 280 decks +23% synergy
Solemn Simulacrum
26% of 280 decks +12% synergy
Brudiclad, Telchor Engineer
26% of 123 decks +22% synergy
Restoration Angel
26% of 39 decks +23% synergy
Sakashima of a Thousand Faces
25% of 262 decks +22% synergy
Charming Prince
25% of 36 decks +23% synergy
Knight of Autumn
25% of 36 decks +23% synergy
Wood Elves
25% of 280 decks +18% synergy
Baleful Strix
25% of 36 decks +12% synergy
Adrix and Nev, Twincasters
24% of 255 decks +18% synergy
Reflector Mage
23% of 39 decks +21% synergy
Alpha Deathclaw
23% of 13 decks +21% synergy
Wall of Omens
23% of 39 decks +20% synergy
Noble Hierarch
23% of 39 decks +7% synergy
Ravenous Chupacabra
23% of 35 decks +19% synergy
Dack's Duplicate
23% of 127 decks +22% synergy
Octomancer
22% of 18 decks +17% synergy
Faeburrow Elder
22% of 36 decks +11% synergy
Consecrated Sphinx
22% of 280 decks +17% synergy
Abuelo, Ancestral Echo
21% of 14 decks +19% synergy
Recruiter of the Guard
21% of 38 decks +18% synergy
Goblin Anarchomancer
21% of 114 decks +7% synergy
Yarok, the Desecrated
21% of 34 decks +17% synergy
Nyxbloom Ancient
21% of 268 decks +17% synergy
Zealous Conscripts
20% of 127 decks +19% synergy
Hostage Taker
20% of 35 decks +15% synergy
Instants
Chaos Warp
41% of 127 decks +9% synergy
Mystical Tutor
39% of 280 decks +24% synergy
Enlightened Tutor
36% of 39 decks +18% synergy
Flame of Anor
35% of 48 decks +30% synergy
Growth Spiral
34% of 270 decks +13% synergy
Worldly Tutor
32% of 280 decks +18% synergy
Path to Exile
31% of 39 decks -15% synergy
Double Major
30% of 255 decks +27% synergy
Assassin's Trophy
26% of 35 decks -5% synergy
Eladamri's Call
26% of 39 decks +15% synergy
Vampiric Tutor
25% of 36 decks +7% synergy
Heroic Intervention
25% of 273 decks -5% synergy
Brainstorm
24% of 280 decks +3% synergy
Lae'zel's Acrobatics
23% of 31 decks +21% synergy
Dovin's Veto
22% of 36 decks +3% synergy
Narset's Reversal
22% of 269 decks +18% synergy
Mana Drain
21% of 280 decks +6% synergy
Semester's End
21% of 34 decks +19% synergy
Arcane Denial
20% of 280 decks +1% synergy
Rapid Hybridization
20% of 280 decks +11% synergy
Generous Gift
19% of 36 decks -6% synergy
Krosan Grip
19% of 280 decks +11% synergy
Fierce Guardianship
18% of 266 decks +0% synergy
Ghostway
18% of 39 decks +17% synergy
Momentary Blink
18% of 39 decks +15% synergy
Cloudshift
18% of 39 decks +15% synergy
An Offer You Can't Refuse
17% of 223 decks -3% synergy
Harrow
17% of 280 decks +8% synergy
Stroke of Midnight
17% of 18 decks +4% synergy
Teferi's Protection
16% of 37 decks -4% synergy
Deflecting Swat
16% of 121 decks -1% synergy
Pongify
15% of 280 decks +3% synergy
Negate
15% of 280 decks -8% synergy
Ghostly Flicker
14% of 280 decks +9% synergy
Swan Song
14% of 280 decks -2% synergy
Reverberate
14% of 127 decks +11% synergy
Cackling Counterpart
14% of 280 decks +13% synergy
Sultai Charm
14% of 36 decks +9% synergy
Planar Genesis
14% of 36 decks +6% synergy
Putrefy
14% of 36 decks -2% synergy
Comet Storm
13% of 127 decks +11% synergy
Fact or Fiction
13% of 280 decks +7% synergy
Reality Shift
12% of 280 decks +3% synergy
Big Score
12% of 101 decks +3% synergy
See Double
12% of 152 decks +10% synergy
Chord of Calling
12% of 280 decks +6% synergy
Deadly Rollick
12% of 34 decks +1% synergy
Second Harvest
12% of 277 decks +7% synergy
Entomb
11% of 36 decks +4% synergy
Dig Through Time
10% of 280 decks +5% synergy
Sorceries
Demonic Tutor
50% of 36 decks +28% synergy
Nature's Lore
40% of 280 decks +8% synergy
Rampant Growth
39% of 280 decks +5% synergy
Doppelgang
38% of 61 decks +34% synergy
Rootcast Apprenticeship
36% of 14 decks +31% synergy
Another Round
33% of 9 decks +32% synergy
Toxic Deluge
33% of 36 decks +16% synergy
Mythos of Illuna
32% of 120 decks +31% synergy
Three Visits
31% of 280 decks +6% synergy
Genesis Ultimatum
30% of 120 decks +24% synergy
Supreme Verdict
26% of 39 decks +12% synergy
Emergent Ultimatum
24% of 33 decks +21% synergy
Skyshroud Claim
21% of 280 decks +12% synergy
Jeska's Will
21% of 118 decks +4% synergy
Temporal Manipulation
21% of 280 decks +20% synergy
Time Wipe
19% of 36 decks +13% synergy
Villainous Wealth
19% of 36 decks +11% synergy
Tooth and Nail
19% of 280 decks +17% synergy
Green Sun's Zenith
19% of 280 decks +12% synergy
Vandalblast
18% of 127 decks +2% synergy
Season of Weaving
17% of 24 decks +13% synergy
Damnation
17% of 36 decks +9% synergy
Finale of Devastation
16% of 269 decks +7% synergy
Wrath of God
15% of 39 decks +9% synergy
Farewell
15% of 33 decks +2% synergy
Irenicus's Vile Duplication
14% of 213 decks +11% synergy
Diabolic Tutor
14% of 36 decks +8% synergy
Quasiduplicate
13% of 271 decks +12% synergy
Walk the Aeons
13% of 280 decks +12% synergy
Bala Ged Recovery
13% of 262 decks +4% synergy
Twinflame
12% of 127 decks +9% synergy
Ponder
12% of 280 decks -1% synergy
Quantum Misalignment
12% of 86 decks +9% synergy
Exsanguinate
11% of 36 decks +5% synergy
Reanimate
11% of 36 decks -5% synergy
Hull Breach
11% of 127 decks +6% synergy
Approach of the Second Sun
11% of 37 decks +7% synergy
Wargate
10% of 39 decks +7% synergy
Clone Legion
10% of 280 decks +9% synergy
Time Stretch
10% of 280 decks +9% synergy
Solve the Equation
10% of 255 decks +5% synergy
Decimate
9% of 127 decks +1% synergy
Explosive Vegetation
9% of 280 decks +6% synergy
Capture of Jingzhou
9% of 280 decks +8% synergy
Guided Passage
9% of 127 decks +7% synergy
Mana Geyser
9% of 127 decks +2% synergy
Gamble
9% of 127 decks -1% synergy
Explore
9% of 280 decks -1% synergy
In Garruk's Wake
8% of 36 decks +5% synergy
Bribery
8% of 280 decks +7% synergy
Utility Artifacts
Lightning Greaves
24% of 280 decks -1% synergy
Twinning Staff
24% of 266 decks +23% synergy
Panharmonicon
22% of 276 decks +18% synergy
Conjurer's Closet
19% of 280 decks +17% synergy
Swiftfoot Boots
18% of 280 decks -10% synergy
Mirror Box
15% of 237 decks +14% synergy
Sensei's Divining Top
14% of 280 decks +8% synergy
Lithoform Engine
13% of 262 decks +11% synergy
Helm of the Host
12% of 273 decks +8% synergy
The Great Henge
10% of 269 decks +0% synergy
The One Ring
9% of 153 decks +0% synergy
Bolas's Citadel
9% of 34 decks -0% synergy
Birthing Pod
9% of 280 decks +6% synergy
Crystal Shard
8% of 280 decks +7% synergy
Strionic Resonator
8% of 280 decks +5% synergy
Isochron Scepter
8% of 280 decks +5% synergy
Vedalken Orrery
6% of 280 decks +5% synergy
Mirage Mirror
6% of 273 decks +4% synergy
Bootleggers' Stash
6% of 223 decks +3% synergy
Scroll Rack
5% of 280 decks +4% synergy
Chimil, the Inner Sun
5% of 76 decks +3% synergy
Enchantments
Rhystic Study
39% of 280 decks +11% synergy
Mirari's Wake
31% of 39 decks +17% synergy
Sylvan Library
23% of 280 decks +12% synergy
Temur Ascendancy
22% of 127 decks +8% synergy
Parallel Lives
21% of 280 decks +13% synergy
Double Vision
18% of 120 decks +16% synergy
Virtue of Knowledge
16% of 101 decks +13% synergy
Mystic Remora
16% of 280 decks -2% synergy
Leyline of Anticipation
15% of 280 decks +11% synergy
Smothering Tithe
14% of 36 decks -11% synergy
Mana Reflection
12% of 280 decks +10% synergy
Storm of Saruman
11% of 130 decks +9% synergy
Wilderness Reclamation
11% of 270 decks +7% synergy
Doubling Season
11% of 280 decks +2% synergy
Zendikar Resurgent
10% of 277 decks +8% synergy
Sneak Attack
10% of 127 decks +8% synergy
Thousand-Year Storm
10% of 123 decks +5% synergy
Defense of the Heart
9% of 280 decks +7% synergy
Omniscience
9% of 280 decks +6% synergy
Exploration
9% of 280 decks +1% synergy
Guardian Project
9% of 270 decks +0% synergy
Pernicious Deed
8% of 36 decks +7% synergy
Animate Dead
8% of 36 decks -1% synergy
Land Tax
8% of 39 decks +1% synergy
Virtue of Strength
7% of 96 decks +4% synergy
Up the Beanstalk
7% of 96 decks +3% synergy
Sunbird's Invocation
7% of 124 decks +5% synergy
Extravagant Replication
6% of 223 decks +5% synergy
Nerd Rage
6% of 50 decks +5% synergy
Fiery Inscription
6% of 50 decks +2% synergy
Proft's Eidetic Memory
6% of 53 decks +3% synergy
Rising of the Day
6% of 54 decks -0% synergy
Splinter Twin
6% of 127 decks +5% synergy
Flameshadow Conjuring
6% of 127 decks +4% synergy
Warstorm Surge
6% of 127 decks +0% synergy
Garruk's Uprising
5% of 264 decks -10% synergy
Swarm Intelligence
5% of 273 decks +4% synergy
Planeswalkers
Venser, the Sojourner
18% of 39 decks +16% synergy
Nissa of Shadowed Boughs
15% of 33 decks +13% synergy
Ral, Storm Conduit
15% of 123 decks +11% synergy
Oko, Thief of Crowns
11% of 269 decks +5% synergy
Garruk, Primal Hunter
6% of 280 decks +3% synergy
Utility Lands
Reliquary Tower
59% of 280 decks +30% synergy
Bojuka Bog
31% of 36 decks +0% synergy
Alchemist's Refuge
29% of 280 decks +22% synergy
Boseiju, Who Endures
24% of 237 decks +5% synergy
Temple of the False God
23% of 280 decks +13% synergy
Mystic Sanctuary
22% of 269 decks +9% synergy
Yavimaya, Cradle of Growth
20% of 253 decks +11% synergy
Otawara, Soaring City
19% of 237 decks +2% synergy
Kessig Wolf Run
15% of 127 decks -1% synergy
Ancient Tomb
14% of 280 decks +3% synergy
Cabal Coffers
14% of 36 decks +3% synergy
Shifting Woodland
10% of 39 decks +1% synergy
Mosswort Bridge
9% of 280 decks -1% synergy
Eiganjo, Seat of the Empire
9% of 33 decks +0% synergy
Phyrexian Tower
8% of 36 decks -0% synergy
Gaea's Cradle
8% of 280 decks +2% synergy
Lumbering Falls
8% of 279 decks +6% synergy
Dryad Arbor
7% of 280 decks +3% synergy
Strip Mine
6% of 280 decks +4% synergy
Nykthos, Shrine to Nyx
6% of 280 decks +1% synergy
Mirrorpool
6% of 277 decks +6% synergy
Command Beacon
6% of 277 decks +1% synergy
Rogue's Passage
6% of 280 decks -13% synergy
Field of the Dead
6% of 269 decks +2% synergy
Mana Artifacts
Sol Ring
91% of 280 decks +7% synergy
Arcane Signet
63% of 269 decks -9% synergy
Izzet Signet
29% of 127 decks +1% synergy
Simic Signet
25% of 280 decks +11% synergy
Chromatic Lantern
19% of 280 decks +10% synergy
Gruul Signet
18% of 127 decks +6% synergy
Thought Vessel
15% of 277 decks -2% synergy
Talisman of Curiosity
14% of 269 decks +1% synergy
Azorius Signet
13% of 39 decks -13% synergy
Talisman of Creativity
11% of 123 decks -18% synergy
Dimir Signet
11% of 36 decks -18% synergy
Fellwar Stone
11% of 280 decks -10% synergy
Selesnya Signet
10% of 39 decks +2% synergy
Mana Crypt
10% of 280 decks +1% synergy
Commander's Sphere
9% of 280 decks -6% synergy
Golgari Signet
8% of 36 decks -4% synergy
Mana Vault
8% of 280 decks +2% synergy
Talisman of Impulse
8% of 127 decks -1% synergy
Gilded Lotus
7% of 280 decks +3% synergy
Basalt Monolith
6% of 280 decks +3% synergy
Decanter of Endless Water
5% of 213 decks +0% synergy
Lands
Command Tower
91% of 280 decks +17% synergy
Stomping Ground
66% of 127 decks +25% synergy
Steam Vents
65% of 127 decks +26% synergy
Breeding Pool
64% of 280 decks +23% synergy
Ketria Triome
62% of 120 decks +30% synergy
Spara's Headquarters
58% of 33 decks +26% synergy
Hinterland Harbor
57% of 280 decks +30% synergy
Overgrown Tomb
56% of 36 decks +13% synergy
Hallowed Fountain
54% of 39 decks +13% synergy
Watery Grave
53% of 36 decks +12% synergy
Temple Garden
51% of 39 decks +11% synergy
Jetmir's Garden
50% of 8 decks +17% synergy
Sunken Hollow
47% of 36 decks +13% synergy
Zagoth Triome
45% of 33 decks +15% synergy
Misty Rainforest
45% of 280 decks +33% synergy
Sulfur Falls
45% of 127 decks +14% synergy
Frontier Bivouac
43% of 127 decks +16% synergy
Ziatora's Proving Ground
43% of 7 decks +11% synergy
Blood Crypt
43% of 7 decks +4% synergy
Rejuvenating Springs
43% of 262 decks +14% synergy
Yavimaya Coast
40% of 280 decks +13% synergy
Opulent Palace
39% of 36 decks +12% synergy
Woodland Cemetery
39% of 36 decks +11% synergy
Rootbound Crag
37% of 127 decks +13% synergy
Exotic Orchard
37% of 280 decks +1% synergy
Training Center
36% of 118 decks +8% synergy
Simic Growth Chamber
34% of 280 decks +14% synergy
Orzhov Basilica
33% of 9 decks +17% synergy
Sunpetal Grove
33% of 39 decks +10% synergy
Drowned Catacomb
33% of 36 decks +8% synergy
Glacial Fortress
33% of 39 decks +8% synergy
Indatha Triome
33% of 9 decks +2% synergy
Shivan Reef
33% of 127 decks +6% synergy
Commercial District
31% of 26 decks +18% synergy
Seaside Citadel
31% of 39 decks +5% synergy
Llanowar Wastes
31% of 36 decks +5% synergy
Cinder Glade
30% of 126 decks -8% synergy
Dreamroot Cascade
29% of 240 decks +10% synergy
Azorius Chancery
28% of 39 decks +13% synergy
Canopy Vista
28% of 39 decks -8% synergy
Bountiful Promenade
28% of 36 decks +4% synergy
Spire Garden
27% of 124 decks +3% synergy
Hedge Maze
27% of 66 decks +13% synergy
Undergrowth Stadium
27% of 33 decks +1% synergy
Flooded Grove
27% of 280 decks +15% synergy
Thundering Falls
27% of 26 decks +16% synergy
Wooded Foothills
27% of 280 decks +17% synergy
Temple of Mystery
26% of 280 decks +9% synergy
Selesnya Sanctuary
26% of 39 decks +12% synergy
Sea of Clouds
25% of 36 decks -1% synergy