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.

Rashmi, Eternities Crafter
0.10% of 2019 decks 2 decks
Roon of the Hidden Realm
0.09% of 3290 decks 3 decks
Kenrith, the Returned King
0.01% of 21332 decks 2 decks
High Synergy Cards
Deadeye Navigator
67% of 18 decks +64% synergy
Peregrine Drake
67% of 18 decks +63% synergy
Archaeomancer
67% of 18 decks +63% synergy
Eternal Witness
83% of 18 decks +62% synergy
Lae'zel's Acrobatics
57% of 7 decks +55% synergy
Soulherder
60% of 10 decks +55% synergy
Walk the Aeons
56% of 18 decks +55% synergy
Temporal Manipulation
56% of 18 decks +54% synergy
Ephemerate
60% of 10 decks +54% synergy
Conjurer's Closet
56% of 18 decks +53% synergy
Top Cards
Ephemerate
60% of 10 decks +54% synergy
Conjurer's Closet
56% of 18 decks +53% synergy
Brago, King Eternal
50% of 10 decks +46% synergy
Eerie Interlude
50% of 10 decks +46% synergy
Ghostly Flicker
50% of 18 decks +45% synergy
Time Stretch
44% of 18 decks +43% synergy
Teleportation Circle
44% of 9 decks +40% synergy
Cyclonic Rift
44% of 18 decks +16% synergy
Counterspell
44% of 18 decks +2% synergy
Cultivate
44% of 18 decks -2% synergy
Creatures
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
Acidic Slime
39% of 18 decks +35% synergy
Birds of Paradise
39% of 18 decks +12% synergy
Agent of Treachery
33% of 18 decks +31% synergy
Thassa, Deep-Dwelling
33% of 18 decks +30% synergy
Mulldrifter
33% of 18 decks +27% synergy
Phyrexian Metamorph
33% of 18 decks +26% 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
28% of 18 decks +27% synergy
Mystic Snake
28% of 18 decks +26% synergy
Solemn Simulacrum
28% of 18 decks +14% synergy
Great Whale
22% of 18 decks +22% synergy
Stunt Double
22% of 18 decks +21% synergy
Diluvian Primordial
22% of 18 decks +21% synergy
Cloud of Faeries
22% of 18 decks +21% synergy
Timeless Witness
22% of 18 decks +19% synergy
Wood Elves
22% of 18 decks +15% synergy
Coiling Oracle
22% of 18 decks +14% synergy
Seedborn Muse
22% of 18 decks +14% synergy
Displacer Kitten
21% of 14 decks +16% synergy
Hullbreaker Horror
19% of 16 decks +12% synergy
Salvager of Secrets
17% of 18 decks +17% synergy
Overgrown Battlement
17% of 18 decks +16% synergy
Frilled Mystic
17% of 18 decks +15% synergy
Wall of Blossoms
17% of 18 decks +15% synergy
Altered Ego
17% of 18 decks +15% synergy
Clever Impersonator
17% of 18 decks +14% synergy
Hornet Queen
17% of 18 decks +14% synergy
Temur Sabertooth
17% of 18 decks +13% synergy
Nyxbloom Ancient
17% of 18 decks +13% synergy
Farhaven Elf
17% of 18 decks +13% synergy
Phantasmal Image
17% of 18 decks +13% synergy
Hydroid Krasis
17% of 18 decks +12% synergy
Kiora's Follower
17% of 18 decks +11% synergy
Bloom Tender
17% of 18 decks +9% synergy
Avenger of Zendikar
17% of 18 decks +7% synergy
Reclamation Sage
17% of 18 decks +5% synergy
Beast Whisperer
17% of 18 decks +4% synergy
Llanowar Elves
17% of 18 decks -4% 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
Mystical Tutor
39% of 18 decks +24% synergy
Arcane Denial
33% of 18 decks +14% synergy
Beast Within
33% of 18 decks -6% synergy
Ghostway
30% of 10 decks +29% synergy
Semester's End
30% of 10 decks +28% synergy
Swan Song
28% of 18 decks +11% synergy
Displace
22% of 18 decks +21% synergy
Fierce Guardianship
22% of 18 decks +4% synergy
Growth Spiral
22% of 18 decks +1% synergy
Negate
22% of 18 decks -1% synergy
Heroic Intervention
22% of 18 decks -7% synergy
Illusionist's Stratagem
17% of 18 decks +16% synergy
Nexus of Fate
17% of 18 decks +15% synergy
Essence Flux
17% of 18 decks +14% synergy
Chord of Calling
17% of 18 decks +11% synergy
Nature's Claim
17% of 18 decks +7% synergy
Force of Will
17% of 18 decks +6% synergy
Worldly Tutor
17% of 18 decks +2% synergy
Brainstorm
17% of 18 decks -5% synergy
Sorceries
Rampant Growth
33% of 18 decks -1% synergy
Three Visits
28% of 18 decks +3% synergy
Kodama's Reach
28% of 18 decks -4% synergy
Nature's Lore
28% of 18 decks -4% synergy
Rite of Replication
22% of 18 decks +19% synergy
Farseek
22% of 18 decks -12% synergy
Capture of Jingzhou
17% of 18 decks +16% synergy
Karn's Temporal Sundering
17% of 18 decks +15% synergy
Bala Ged Recovery
17% of 18 decks +7% synergy
Utility Artifacts
Crystal Shard
39% of 18 decks +38% synergy
Panharmonicon
39% of 18 decks +35% synergy
Lightning Greaves
28% of 18 decks +2% synergy
Erratic Portal
17% of 18 decks +16% synergy
Altar of Dementia
17% of 18 decks +14% synergy
Strionic Resonator
17% of 18 decks +13% synergy
Enchantments
Mystic Remora
22% of 18 decks +4% synergy
Rhystic Study
22% of 18 decks -6% synergy
Followed Footsteps
17% of 18 decks +16% synergy
Mana Reflection
17% of 18 decks +15% synergy
Freed from the Real
17% of 18 decks +15% synergy
Wilderness Reclamation
17% of 18 decks +13% synergy
Guardian Project
17% of 18 decks +8% synergy
Utility Lands
Reliquary Tower
61% of 18 decks +32% synergy
Alchemist's Refuge
39% of 18 decks +32% synergy
Temple of the False God
33% of 18 decks +24% synergy
Boseiju, Who Endures
31% of 16 decks +12% synergy
Otawara, Soaring City
19% of 16 decks +2% synergy
Mystic Sanctuary
17% of 18 decks +4% synergy
Mana Artifacts
Sol Ring
72% of 18 decks -12% synergy
Arcane Signet
61% of 18 decks -11% synergy
Azorius Signet
40% of 10 decks +14% synergy
Coveted Jewel
17% of 18 decks +16% synergy
Basalt Monolith
17% of 18 decks +14% synergy
Simic Signet
17% of 18 decks +2% synergy
Lands
Gruul Turf
100% of 4 decks +84% synergy
Izzet Boilerworks
100% of 4 decks +84% synergy
Command Tower
83% of 18 decks +10% synergy
Hinterland Harbor
67% of 18 decks +40% synergy
Breeding Pool
61% of 18 decks +20% 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
44% of 18 decks +33% synergy
Rejuvenating Springs
44% of 18 decks +16% synergy
Selesnya Sanctuary
40% of 10 decks +26% synergy
Azorius Chancery
40% of 10 decks +25% synergy
Seaside Citadel
40% of 10 decks +14% synergy
Temple Garden
40% of 10 decks -1% synergy
Simic Growth Chamber
39% of 18 decks +19% synergy
Yavimaya Coast
39% of 18 decks +13% synergy
Dreamroot Cascade
38% of 16 decks +19% synergy
Temple of Mystery
33% of 18 decks +16% 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
28% of 18 decks +16% synergy
Exotic Orchard
28% of 18 decks -8% synergy
Barkchannel Pathway
22% of 18 decks +13% synergy
Vineglimmer Snarl
22% of 18 decks +12% synergy
Flooded Strand
22% of 18 decks +12% synergy
Simic Guildgate
17% of 18 decks +10% synergy
Fabled Passage
17% of 18 decks +7% synergy
Tropical Island
17% of 18 decks +3% synergy
Terramorphic Expanse
17% of 18 decks +1% synergy
Evolving Wilds
17% of 18 decks -4% synergy