Progenitor Mimic + Capture of Jingzhou + Eternal Witness

Progenitor Mimic
Capture of Jingzhou
Eternal Witness

Requires
Progenitor Mimic must be on the battlefield. Capture of Jingzhou 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 Capture of Jingzhou 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 Capture of Jingzhou from your graveyard to your hand.
  4. Repeat.
Results
Infinite turns.

Riku of Two Reflections
0.16% of 4877 decks 8 decks
Maelstrom Wanderer
0.07% of 5914 decks 4 decks
Adrix and Nev, Twincasters
0.06% of 6707 decks 4 decks
Felix Five-Boots
0.09% of 3527 decks 3 decks
Prime Speaker Zegana
0.30% of 675 decks 2 decks
Rashmi, Eternities Crafter
0.10% of 2009 decks 2 decks
Círdan the Shipwright
0.05% of 1835 decks 1 decks
Animar, Soul of Elements
0.01% of 16060 decks 1 decks
Momir Vig, Simic Visionary
0.10% of 1019 decks 1 decks
Sakashima of a Thousand Faces // Thrasios, Triton Hero
1.20% of 83 decks 1 decks
Xyris, the Writhing Storm
0.01% of 11207 decks 1 decks
Yidris, Maelstrom Wielder
0.02% of 6653 decks 1 decks
Muldrotha, the Gravetide
0.01% of 15570 decks 1 decks
Atraxa, Grand Unifier
0.01% of 14693 decks 1 decks
Roon of the Hidden Realm
0.03% of 3192 decks 1 decks
Koma, Cosmos Serpent
0.02% of 5457 decks 1 decks
Aesi, Tyrant of Gyre Strait
0.01% of 10570 decks 1 decks
Tamiyo, Inquisitive Student
0.05% of 2147 decks 1 decks
High Synergy Cards
Time Warp
60% of 42 decks +57% synergy
Cyclonic Rift
71% of 42 decks +44% synergy
Temporal Manipulation
40% of 42 decks +39% synergy
Rite of Replication
40% of 42 decks +37% synergy
Dockside Extortionist
47% of 17 decks +35% synergy
Etali, Primal Conqueror
45% of 11 decks +34% synergy
Doppelgang
37% of 19 decks +33% synergy
Rhystic Study
60% of 42 decks +32% synergy
Deadeye Navigator
31% of 42 decks +29% synergy
Mystical Tutor
43% of 42 decks +28% synergy
Top Cards
Kodama's Reach
52% of 42 decks +21% synergy
Assassin's Trophy
50% of 8 decks +20% synergy
Cultivate
48% of 42 decks +1% synergy
Birds of Paradise
45% of 42 decks +18% synergy
Farseek
45% of 42 decks +11% synergy
Blasphemous Act
44% of 18 decks +11% synergy
Nature's Lore
43% of 42 decks +11% synergy
Fierce Guardianship
41% of 41 decks +23% synergy
Rampant Growth
40% of 42 decks +6% synergy
Counterspell
40% of 42 decks -2% synergy
Creatures
Elesh Norn, Mother of Machines
100% of 3 decks +95% synergy
Sakura-Tribe Elder
31% of 42 decks +12% synergy
Spark Double
29% of 41 decks +22% synergy
Etali, Primal Storm
28% of 18 decks +18% synergy
Koma, Cosmos Serpent
27% of 41 decks +21% synergy
Biovisionary
26% of 42 decks +25% synergy
Phyrexian Metamorph
26% of 42 decks +19% synergy
Llanowar Elves
26% of 42 decks +5% synergy
Harmonic Prodigy
25% of 16 decks +21% synergy
Delighted Halfling
25% of 32 decks +11% synergy
Clever Impersonator
24% of 42 decks +21% synergy
Archaeomancer
24% of 42 decks +20% synergy
Consecrated Sphinx
24% of 42 decks +19% synergy
Avenger of Zendikar
24% of 42 decks +14% synergy
Hullbreaker Horror
22% of 40 decks +15% synergy
Zealous Conscripts
22% of 18 decks +20% synergy
Kiki-Jiki, Mirror Breaker
22% of 18 decks +19% synergy
Sakashima of a Thousand Faces
22% of 41 decks +19% synergy
Nyxbloom Ancient
22% of 41 decks +18% synergy
Craterhoof Behemoth
21% of 42 decks +15% synergy
Coiling Oracle
21% of 42 decks +14% synergy
Ancient Copper Dragon
20% of 15 decks +16% synergy
Acidic Slime
19% of 42 decks +15% synergy
Mulldrifter
19% of 42 decks +13% synergy
Seedborn Muse
19% of 42 decks +11% synergy
Reclamation Sage
19% of 42 decks +8% synergy
Solemn Simulacrum
19% of 42 decks +5% synergy
Displacer Kitten
18% of 39 decks +12% synergy
Terror of the Peaks
18% of 17 decks +13% synergy
Thassa, Deep-Dwelling
17% of 41 decks +14% synergy
Palinchron
17% of 42 decks +16% synergy
Inferno Titan
17% of 18 decks +15% synergy
Balefire Dragon
17% of 18 decks +14% synergy
Dualcaster Mage
17% of 18 decks +12% synergy
Tatyova, Benthic Druid
17% of 42 decks +5% synergy
Timeless Witness
15% of 40 decks +12% synergy
Old Gnawbone
15% of 40 decks +11% synergy
Tireless Provisioner
15% of 40 decks +4% synergy
Agent of Treachery
15% of 41 decks +13% synergy
Stunt Double
14% of 42 decks +13% synergy
Peregrine Drake
14% of 42 decks +11% synergy
Temur Sabertooth
14% of 42 decks +11% synergy
Thassa's Oracle
12% of 41 decks +5% synergy
Tendershoot Dryad
12% of 42 decks +9% synergy
Phantasmal Image
12% of 42 decks +8% synergy
Wood Elves
12% of 42 decks +5% synergy
Fyndhorn Elves
12% of 42 decks -1% synergy
Elvish Mystic
12% of 42 decks -6% synergy
Gruff Triplets
12% of 26 decks +10% synergy
Esix, Fractal Bloom
10% of 41 decks +8% synergy
Instants
Mana Drain
40% of 42 decks +25% synergy
Worldly Tutor
38% of 42 decks +24% synergy
Beast Within
38% of 42 decks -0% synergy
Vampiric Tutor
38% of 8 decks +19% synergy
Heroic Intervention
36% of 42 decks +6% synergy
Flame of Anor
30% of 10 decks +25% synergy
Nexus of Fate
29% of 42 decks +27% synergy
Chaos Warp
28% of 18 decks -4% synergy
Three Steps Ahead
27% of 15 decks +23% synergy
Brainstorm
24% of 42 decks +3% synergy
An Offer You Can't Refuse
23% of 39 decks +2% synergy
Growth Spiral
22% of 41 decks +0% synergy
Narset's Reversal
20% of 41 decks +16% synergy
Chord of Calling
19% of 42 decks +13% synergy
Pact of Negation
19% of 42 decks +12% synergy
Force of Will
19% of 42 decks +8% synergy
Pongify
19% of 42 decks +7% synergy
Swan Song
19% of 42 decks +3% synergy
Deflecting Swat
18% of 17 decks +1% synergy
Reality Shift
17% of 42 decks +8% synergy
Arcane Denial
17% of 42 decks -3% synergy
Double Major
15% of 41 decks +11% synergy
Flusterstorm
14% of 42 decks +7% synergy
Krosan Grip
14% of 42 decks +7% synergy
Rapid Hybridization
14% of 42 decks +5% synergy
Nature's Claim
14% of 42 decks +5% synergy
Negate
14% of 42 decks -9% synergy
Elminster's Simulacrum
13% of 39 decks +12% synergy
Second Harvest
12% of 42 decks +7% synergy
Noxious Revival
12% of 42 decks +6% synergy
Frantic Search
12% of 42 decks -0% synergy
Cackling Counterpart
10% of 42 decks +8% synergy
Blue Sun's Zenith
10% of 42 decks +7% synergy
Dig Through Time
10% of 42 decks +4% synergy
Dramatic Reversal
10% of 42 decks +4% synergy
Harrow
10% of 42 decks -0% synergy
Crop Rotation
10% of 42 decks -0% synergy
See Double
9% of 33 decks +7% synergy
Force of Vigor
7% of 41 decks +4% synergy
Resculpt
7% of 41 decks +2% synergy
Veil of Summer
7% of 41 decks +1% synergy
Force of Negation
7% of 41 decks -2% synergy
Commandeer
7% of 42 decks +6% synergy
Plasm Capture
7% of 42 decks +6% synergy
Cryptic Command
7% of 42 decks +5% synergy
Rewind
7% of 42 decks +4% synergy
Dispel
7% of 42 decks +2% synergy
Ghostly Flicker
7% of 42 decks +2% synergy
Sorceries
Demonic Tutor
50% of 8 decks +28% synergy
Three Visits
38% of 42 decks +13% synergy
Villainous Wealth
38% of 8 decks +29% synergy
Genesis Ultimatum
29% of 17 decks +24% synergy
Walk the Aeons
21% of 42 decks +21% synergy
Tooth and Nail
19% of 42 decks +18% synergy
Mythos of Illuna
18% of 17 decks +17% synergy
Finale of Devastation
17% of 41 decks +9% synergy
Skyshroud Claim
17% of 42 decks +8% synergy
Irenicus's Vile Duplication
15% of 39 decks +12% synergy
Karn's Temporal Sundering
14% of 42 decks +13% synergy
Bala Ged Recovery
12% of 41 decks +3% synergy
Seasons Past
12% of 42 decks +11% synergy
Time Stretch
12% of 42 decks +10% synergy
Regrowth
12% of 42 decks +8% synergy
Eldritch Evolution
12% of 42 decks +7% synergy
Green Sun's Zenith
12% of 42 decks +6% synergy
Sea Gate Restoration
10% of 41 decks +5% synergy
Part the Waterveil
10% of 42 decks +9% synergy
Beacon of Tomorrows
10% of 42 decks +9% synergy
Triumph of the Hordes
10% of 42 decks +6% synergy
Curse of the Swine
10% of 42 decks +5% synergy
Harmonize
10% of 42 decks +1% synergy
Explore
10% of 42 decks +0% synergy
Ponder
10% of 42 decks -3% synergy
Quasiduplicate
7% of 41 decks +6% synergy
Turntimber Symbiosis
7% of 41 decks +5% synergy
Temporal Mastery
7% of 42 decks +6% synergy
Personal Tutor
7% of 42 decks +6% synergy
Expropriate
7% of 42 decks +6% synergy
Ezuri's Predation
7% of 42 decks +4% synergy
Explosive Vegetation
7% of 42 decks +4% synergy
Shamanic Revelation
7% of 42 decks -2% synergy
Rishkar's Expertise
7% of 42 decks -3% synergy
Windfall
7% of 42 decks -6% synergy
Utility Artifacts
Lightning Greaves
26% of 42 decks +1% synergy
Conjurer's Closet
19% of 42 decks +17% synergy
Swiftfoot Boots
17% of 42 decks -11% synergy
The One Ring
15% of 34 decks +6% synergy
Helm of the Host
14% of 42 decks +11% synergy
Mirror Box
12% of 40 decks +11% synergy
Crystal Shard
12% of 42 decks +11% synergy
Scroll Rack
12% of 42 decks +10% synergy
Isochron Scepter
12% of 42 decks +9% synergy
Panharmonicon
12% of 42 decks +8% synergy
Bootleggers' Stash
10% of 39 decks +8% synergy
Twinning Staff
10% of 41 decks +9% synergy
The Great Henge
10% of 41 decks -0% synergy
Cloudstone Curio
10% of 42 decks +9% synergy
Sensei's Divining Top
10% of 42 decks +4% synergy
Ashnod's Altar
10% of 42 decks +2% synergy
Mimic Vat
7% of 42 decks +6% synergy
Enchantments
Teleportation Circle
100% of 3 decks +96% synergy
Mystic Remora
33% of 42 decks +15% synergy
Sylvan Library
29% of 42 decks +17% synergy
Sneak Attack
17% of 18 decks +14% synergy
Parallel Lives
17% of 42 decks +9% synergy
Temur Ascendancy
17% of 18 decks +2% synergy
Exploration
14% of 42 decks +6% synergy
Storm of Saruman
13% of 30 decks +12% synergy
Extravagant Replication
13% of 39 decks +11% synergy
Burgeoning
12% of 42 decks +8% synergy
Doubling Season
12% of 42 decks +3% synergy
Up the Beanstalk
12% of 26 decks +7% synergy
Zendikar Resurgent
10% of 42 decks +7% synergy
Omniscience
10% of 42 decks +7% synergy
Wild Growth
10% of 42 decks -1% synergy
Wilderness Reclamation
7% of 41 decks +3% synergy
Mind's Dilation
7% of 42 decks +6% synergy
Mana Reflection
7% of 42 decks +5% synergy
Asceticism
7% of 42 decks +4% synergy
Carpet of Flowers
7% of 42 decks +3% synergy
Battles
Invasion of Ikoria
9% of 32 decks +4% synergy
Planeswalkers
Oko, Thief of Crowns
20% of 41 decks +14% synergy
Garruk, Primal Hunter
12% of 42 decks +9% synergy
Jace, the Mind Sculptor
7% of 42 decks +6% synergy
Tezzeret the Seeker
7% of 42 decks +5% synergy
Utility Lands
Reliquary Tower
57% of 42 decks +28% synergy
Boseiju, Who Endures
32% of 40 decks +13% synergy
Alchemist's Refuge
26% of 42 decks +19% synergy
Ancient Tomb
24% of 42 decks +13% synergy
Shifting Woodland
23% of 13 decks +14% synergy
Otawara, Soaring City
22% of 40 decks +6% synergy
Temple of the False God
21% of 42 decks +12% synergy
Yavimaya, Cradle of Growth
18% of 40 decks +8% synergy
Mystic Sanctuary
17% of 41 decks +5% synergy
Gaea's Cradle
14% of 42 decks +9% synergy
Rogue's Passage
12% of 42 decks -8% synergy
Lumbering Falls
10% of 42 decks +7% synergy
Urza's Saga
8% of 40 decks +0% synergy
Mosswort Bridge
7% of 42 decks -3% synergy
Mana Artifacts
Sol Ring
98% of 42 decks +13% synergy
Arcane Signet
66% of 41 decks -6% synergy
Golgari Signet
38% of 8 decks +25% synergy
Dimir Signet
38% of 8 decks +8% synergy
Simic Signet
29% of 42 decks +14% synergy
Izzet Signet
28% of 18 decks -0% synergy
Mana Crypt
24% of 42 decks +15% synergy
Thought Vessel
24% of 42 decks +7% synergy
Talisman of Curiosity
20% of 41 decks +7% synergy
Mana Vault
19% of 42 decks +13% synergy
Gruul Signet
17% of 18 decks +5% synergy
Jeweled Lotus
15% of 41 decks +9% synergy
Chromatic Lantern
14% of 42 decks +5% synergy
Gilded Lotus
10% of 42 decks +6% synergy
Mox Diamond
10% of 42 decks +5% synergy
Chrome Mox
10% of 42 decks +3% synergy
Grim Monolith
7% of 42 decks +5% synergy
Thran Dynamo
7% of 42 decks +2% synergy
Lotus Petal
7% of 42 decks +0% synergy
Commander's Sphere
7% of 42 decks -8% synergy
Fellwar Stone
7% of 42 decks -14% synergy
Lands
Command Tower
83% of 42 decks +9% synergy
Steam Vents
67% of 18 decks +28% synergy
Ketria Triome
65% of 17 decks +32% synergy
Breeding Pool
64% of 42 decks +23% synergy
Hinterland Harbor
62% of 42 decks +34% synergy
Stomping Ground
61% of 18 decks +20% synergy
Misty Rainforest
55% of 42 decks +43% synergy
Rejuvenating Springs
54% of 41 decks +25% synergy
Izzet Boilerworks
50% of 18 decks +34% synergy
Rootbound Crag
50% of 18 decks +26% synergy
Frontier Bivouac
50% of 18 decks +23% synergy
Gruul Turf
44% of 18 decks +29% synergy
Sulfur Falls
44% of 18 decks +14% synergy
Yavimaya Coast
38% of 42 decks +12% synergy
Exotic Orchard
38% of 42 decks +3% synergy
Underground River
38% of 8 decks +18% synergy
Drowned Catacomb
38% of 8 decks +12% synergy
Llanowar Wastes
38% of 8 decks +12% synergy
Morphic Pool
38% of 8 decks +11% synergy
Undergrowth Stadium
38% of 8 decks +11% synergy
Woodland Cemetery
38% of 8 decks +10% synergy
Sunken Hollow
38% of 8 decks +3% synergy
Dreamroot Cascade
35% of 40 decks +16% synergy
Taiga
33% of 18 decks +20% synergy
Tropical Island
31% of 42 decks +17% synergy
Spire Garden
28% of 18 decks +4% synergy
Shivan Reef
28% of 18 decks +1% synergy
Cinder Glade
28% of 18 decks -11% synergy
Wooded Foothills
26% of 42 decks +16% synergy
Scalding Tarn
26% of 42 decks +15% synergy
Simic Growth Chamber
26% of 42 decks +6% synergy
Evolving Wilds
26% of 42 decks +5% synergy
Training Center
24% of 17 decks -4% synergy
Volcanic Island
22% of 18 decks +8% synergy
Karplusan Forest
22% of 18 decks +5% synergy
Vineglimmer Snarl
22% of 41 decks +11% synergy
Myriad Landscape
21% of 42 decks +2% synergy
Hedge Maze
21% of 19 decks +7% synergy
Reflecting Pool
19% of 42 decks +14% synergy
Verdant Catacombs
19% of 42 decks +8% synergy
Flooded Grove
19% of 42 decks +7% synergy
Overflowing Basin
19% of 16 decks +8% synergy
Barkchannel Pathway
17% of 41 decks +8% synergy
Terramorphic Expanse
17% of 42 decks +1% synergy
Game Trail
17% of 18 decks +1% synergy
Temple of Mystery
17% of 42 decks -1% synergy
Prismatic Vista
15% of 41 decks +9% synergy
Fabled Passage
15% of 41 decks +5% synergy
Flooded Strand
14% of 42 decks +4% synergy
Waterlogged Grove
12% of 41 decks +5% synergy