Progenitor Mimic + Time Warp + Mnemonic Wall

Progenitor Mimic
Time Warp
Mnemonic Wall

Requires
Progenitor Mimic must be on the battlefield. Time Warp must be on the battlefield. Mnemonic Wall must be on the battlefield. Enough mana available to cast the extra turn spell each turn. Progenitor Mimic is a copy of Mnemonic Wall.
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 Mnemonic Wall.
  3. When the token Mnemonic Wall enters the battlefield, it triggers itself, returning Time Warp from your graveyard to your hand.
  4. Repeat.
Results
Infinite turns.

Roon of the Hidden Realm
0.09% of 3233 decks 3 decks
Rashmi, Eternities Crafter
0.10% of 2003 decks 2 decks
Kenrith, the Returned King
0.01% of 21513 decks 2 decks
Kruphix, God of Horizons
0.03% of 3079 decks 1 decks
Atraxa, Grand Unifier
0.01% of 14209 decks 1 decks
Animar, Soul of Elements
0.01% of 15877 decks 1 decks
Arcades, the Strategist
0.01% of 16365 decks 1 decks
Volo, Guide to Monsters
0.01% of 7535 decks 1 decks
Lagrella, the Magpie
0.06% of 1599 decks 1 decks
Gandalf, Westward Voyager
0.13% of 776 decks 1 decks
Yarok, the Desecrated
0.01% of 10412 decks 1 decks
Chulane, Teller of Tales
0.01% of 7344 decks 1 decks
Arcades Sabboth
0.50% of 202 decks 1 decks
High Synergy Cards
Deadeye Navigator
65% of 17 decks +62% synergy
Eternal Witness
82% of 17 decks +61% synergy
Peregrine Drake
65% of 17 decks +61% synergy
Archaeomancer
65% of 17 decks +61% synergy
Lae'zel's Acrobatics
57% of 7 decks +55% synergy
Soulherder
60% of 10 decks +55% synergy
Ephemerate
60% of 10 decks +54% synergy
Walk the Aeons
53% of 17 decks +52% synergy
Temporal Manipulation
53% of 17 decks +52% synergy
Conjurer's Closet
53% of 17 decks +51% synergy
Top Cards
Ghostly Flicker
53% of 17 decks +48% synergy
Brago, King Eternal
50% of 10 decks +46% synergy
Eerie Interlude
50% of 10 decks +46% synergy
Cyclonic Rift
47% of 17 decks +19% synergy
Counterspell
47% of 17 decks +4% synergy
Teleportation Circle
44% of 9 decks +41% synergy
Time Stretch
41% of 17 decks +40% synergy
Acidic Slime
41% of 17 decks +37% synergy
Panharmonicon
41% of 17 decks +37% synergy
Mystical Tutor
41% of 17 decks +26% synergy
Creatures
Ardent Elementalist
100% of 3 decks +99% synergy
Elesh Norn, Mother of Machines
60% of 5 decks +55% synergy
Yorion, Sky Nomad
40% of 10 decks +38% synergy
Felidar Guardian
40% of 10 decks +37% synergy
Karmic Guide
40% of 10 decks +35% synergy
Agent of Treachery
35% of 17 decks +33% synergy
Thassa, Deep-Dwelling
35% of 17 decks +32% synergy
Mulldrifter
35% of 17 decks +29% synergy
Phyrexian Metamorph
35% of 17 decks +28% synergy
Birds of Paradise
35% of 17 decks +8% synergy
Reveillark
30% of 10 decks +28% synergy
Cloudblazer
30% of 10 decks +27% synergy
Emiel the Blessed
30% of 10 decks +26% synergy
Palinchron
29% of 17 decks +29% synergy
Mystic Snake
29% of 17 decks +28% synergy
Great Whale
24% of 17 decks +23% synergy
Stunt Double
24% of 17 decks +23% synergy
Diluvian Primordial
24% of 17 decks +22% synergy
Cloud of Faeries
24% of 17 decks +22% synergy
Timeless Witness
24% of 17 decks +21% synergy
Wood Elves
24% of 17 decks +17% synergy
Coiling Oracle
24% of 17 decks +16% synergy
Seedborn Muse
24% of 17 decks +15% synergy
Solemn Simulacrum
24% of 17 decks +9% synergy
Displacer Kitten
23% of 13 decks +18% synergy
Hullbreaker Horror
20% of 15 decks +13% synergy
Salvager of Secrets
18% of 17 decks +17% synergy
Overgrown Battlement
18% of 17 decks +17% synergy
Frilled Mystic
18% of 17 decks +16% synergy
Wall of Blossoms
18% of 17 decks +16% synergy
Clever Impersonator
18% of 17 decks +15% synergy
Hornet Queen
18% of 17 decks +15% synergy
Temur Sabertooth
18% of 17 decks +14% synergy
Farhaven Elf
18% of 17 decks +14% synergy
Phantasmal Image
18% of 17 decks +14% synergy
Kiora's Follower
18% of 17 decks +12% synergy
Avenger of Zendikar
18% of 17 decks +8% synergy
Reclamation Sage
18% of 17 decks +7% synergy
Beast Whisperer
18% of 17 decks +6% synergy
Instants
Momentary Blink
40% of 10 decks +37% synergy
Cloudshift
40% of 10 decks +37% synergy
Swords to Plowshares
40% of 10 decks -23% synergy
Arcane Denial
35% of 17 decks +16% synergy
Beast Within
35% of 17 decks -4% synergy
Ghostway
30% of 10 decks +29% synergy
Semester's End
30% of 10 decks +28% synergy
Swan Song
29% of 17 decks +13% synergy
Displace
24% of 17 decks +22% synergy
Fierce Guardianship
24% of 17 decks +6% synergy
Growth Spiral
24% of 17 decks +2% synergy
Negate
24% of 17 decks +1% synergy
Heroic Intervention
24% of 17 decks -6% synergy
Illusionist's Stratagem
18% of 17 decks +17% synergy
Nexus of Fate
18% of 17 decks +16% synergy
Essence Flux
18% of 17 decks +15% synergy
Chord of Calling
18% of 17 decks +12% synergy
Nature's Claim
18% of 17 decks +8% synergy
Force of Will
18% of 17 decks +6% synergy
Worldly Tutor
18% of 17 decks +3% synergy
Brainstorm
18% of 17 decks -4% synergy
Sorceries
Cultivate
41% of 17 decks -5% synergy
Rampant Growth
35% of 17 decks +1% synergy
Kodama's Reach
29% of 17 decks -2% synergy
Rite of Replication
24% of 17 decks +20% synergy
Three Visits
24% of 17 decks -1% synergy
Nature's Lore
24% of 17 decks -8% synergy
Farseek
24% of 17 decks -11% synergy
Capture of Jingzhou
18% of 17 decks +17% synergy
Karn's Temporal Sundering
18% of 17 decks +16% synergy
Bala Ged Recovery
18% of 17 decks +8% synergy
Utility Artifacts
Crystal Shard
35% of 17 decks +34% synergy
Lightning Greaves
24% of 17 decks -2% synergy
Altar of Dementia
18% of 17 decks +15% synergy
Strionic Resonator
18% of 17 decks +14% synergy
Enchantments
Mystic Remora
24% of 17 decks +6% synergy
Rhystic Study
24% of 17 decks -4% synergy
Guardian Project
18% of 17 decks +9% synergy
Utility Lands
Reliquary Tower
59% of 17 decks +29% synergy
Alchemist's Refuge
35% of 17 decks +29% synergy
Temple of the False God
35% of 17 decks +26% synergy
Boseiju, Who Endures
33% of 15 decks +14% synergy
Otawara, Soaring City
20% of 15 decks +3% synergy
Mystic Sanctuary
18% of 17 decks +5% synergy
Mana Artifacts
Sol Ring
76% of 17 decks -8% synergy
Arcane Signet
59% of 17 decks -13% synergy
Azorius Signet
40% of 10 decks +14% synergy
Coveted Jewel
18% of 17 decks +17% synergy
Simic Signet
18% of 17 decks +3% synergy
Lands
Gruul Turf
100% of 3 decks +84% synergy
Izzet Boilerworks
100% of 3 decks +84% synergy
Command Tower
82% of 17 decks +8% synergy
Hinterland Harbor
65% of 17 decks +38% synergy
Breeding Pool
65% of 17 decks +24% synergy
Sunpetal Grove
50% of 10 decks +27% synergy
Bountiful Promenade
50% of 10 decks +26% synergy
Spara's Headquarters
50% of 8 decks +18% synergy
Hallowed Fountain
50% of 10 decks +9% synergy
Misty Rainforest
47% of 17 decks +35% synergy
Rejuvenating Springs
47% of 17 decks +18% synergy
Yavimaya Coast
41% of 17 decks +15% synergy
Selesnya Sanctuary
40% of 10 decks +26% synergy
Azorius Chancery
40% of 10 decks +25% synergy
Dreamroot Cascade
40% of 15 decks +21% synergy
Seaside Citadel
40% of 10 decks +14% synergy
Temple Garden
40% of 10 decks -1% synergy
Temple of Mystery
35% of 17 decks +18% synergy
Simic Growth Chamber
35% of 17 decks +15% synergy
Glacial Fortress
30% of 10 decks +5% synergy
Sea of Clouds
30% of 10 decks +4% synergy
Prairie Stream
30% of 10 decks -4% synergy
Canopy Vista
30% of 10 decks -6% synergy
Flooded Grove
29% of 17 decks +17% synergy
Exotic Orchard
29% of 17 decks -6% synergy
Vineglimmer Snarl
24% of 17 decks +13% synergy
Flooded Strand
24% of 17 decks +13% synergy
Simic Guildgate
18% of 17 decks +11% synergy
Barkchannel Pathway
18% of 17 decks +9% synergy
Fabled Passage
18% of 17 decks +8% synergy
Tropical Island
18% of 17 decks +3% synergy
Terramorphic Expanse
18% of 17 decks +2% synergy
Evolving Wilds
18% of 17 decks -3% synergy