Extravagant Replication + Shipwreck Dowser + Time Warp

Extravagant Replication
Shipwreck Dowser
Time Warp

Requires
Extravagant Replication must be on the battlefield. Shipwreck Dowser 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 Shipwreck Dowser.
  4. When the Shipwreck Dowser token enters the battlefield, it triggers, returning Time Warp from your graveyard to your hand.
  5. Repeat.
Results
Infinite turns.

Thassa, Deep-Dwelling
0.56% of 1245 decks 7 decks
Orvar, the All-Form
0.03% of 7235 decks 2 decks
Svyelun of Sea and Sky
0.07% of 1528 decks 1 decks
Baral, Chief of Compliance
0.03% of 3732 decks 1 decks
Alora, Merry Thief // Candlekeep Sage
1.82% of 55 decks 1 decks
Jhoira of the Ghitu
0.03% of 3135 decks 1 decks
Eluge, the Shoreless Sea
0.02% of 4322 decks 1 decks
New Cards
Mirror Room // Fractured Realm
75% of 4 decks +70% synergy
High Synergy Cards
Archaeomancer
86% of 14 decks +82% synergy
Temporal Manipulation
64% of 14 decks +63% synergy
Peregrine Drake
64% of 14 decks +61% synergy
Panharmonicon
64% of 14 decks +60% synergy
Mystic Sanctuary
71% of 14 decks +59% synergy
Aether Channeler
58% of 12 decks +56% synergy
Sapphire Medallion
57% of 14 decks +55% synergy
Salvager of Secrets
50% of 14 decks +50% synergy
Reliquary Tower
79% of 14 decks +49% synergy
Conjurer's Closet
50% of 14 decks +48% synergy
Top Cards
Counterspell
71% of 14 decks +29% synergy
Cyclonic Rift
64% of 14 decks +36% synergy
Rhystic Study
57% of 14 decks +29% synergy
Agent of Treachery
50% of 14 decks +48% synergy
Ghostly Flicker
50% of 14 decks +45% synergy
Displacer Kitten
50% of 14 decks +45% synergy
Solemn Simulacrum
50% of 14 decks +36% synergy
Mystical Tutor
50% of 14 decks +35% synergy
Meteor Golem
43% of 14 decks +41% synergy
Mystic Confluence
43% of 14 decks +40% synergy
Creatures
Thassa's Oracle
43% of 14 decks +36% synergy
Cloudkin Seer
36% of 14 decks +35% synergy
Scourge of Fleets
36% of 14 decks +34% synergy
Deadeye Navigator
36% of 14 decks +33% synergy
Glen Elendra Archmage
36% of 14 decks +33% synergy
Mulldrifter
36% of 14 decks +30% synergy
Spark Double
36% of 14 decks +29% synergy
Fblthp, the Lost
29% of 14 decks +28% synergy
Sea Gate Oracle
29% of 14 decks +28% synergy
Naru Meha, Master Wizard
29% of 14 decks +28% synergy
Mnemonic Wall
29% of 14 decks +28% synergy
Duplicant
29% of 14 decks +28% synergy
Venser, Shaper Savant
29% of 14 decks +27% synergy
Spellseeker
29% of 14 decks +25% synergy
Sicarian Infiltrator
27% of 11 decks +27% synergy
Defiler of Dreams
25% of 12 decks +24% synergy
Exclusion Mage
21% of 14 decks +21% synergy
Scholar of the Ages
21% of 14 decks +21% synergy
Watcher for Tomorrow
21% of 14 decks +21% synergy
Sower of Temptation
21% of 14 decks +20% synergy
Amphin Mutineer
21% of 14 decks +20% synergy
Astral Dragon
21% of 14 decks +20% synergy
Clever Impersonator
21% of 14 decks +19% synergy
Sakashima of a Thousand Faces
21% of 14 decks +18% synergy
Talrand, Sky Summoner
21% of 14 decks +17% synergy
Instants
Arcane Denial
43% of 14 decks +23% synergy
Familiar's Ruse
36% of 14 decks +35% synergy
Narset's Reversal
36% of 14 decks +32% synergy
High Tide
36% of 14 decks +32% synergy
Fierce Guardianship
36% of 14 decks +18% synergy
Brainstorm
36% of 14 decks +15% synergy
Negate
36% of 14 decks +13% synergy
Illusionist's Stratagem
29% of 14 decks +28% synergy
Displace
29% of 14 decks +27% synergy
Sublime Epiphany
29% of 14 decks +27% synergy
Aetherize
29% of 14 decks +23% synergy
Reality Shift
29% of 14 decks +20% synergy
Cryptic Command
21% of 14 decks +20% synergy
Essence Flux
21% of 14 decks +19% synergy
Blue Sun's Zenith
21% of 14 decks +19% synergy
Rewind
21% of 14 decks +18% synergy
Chain of Vapor
21% of 14 decks +17% synergy
Rapid Hybridization
21% of 14 decks +12% synergy
Force of Will
21% of 14 decks +10% synergy
Mana Drain
21% of 14 decks +6% synergy
Sorceries
Solve the Equation
29% of 14 decks +24% synergy
Walk the Aeons
21% of 14 decks +21% synergy
Step Through
21% of 14 decks +20% synergy
Time Stretch
21% of 14 decks +20% synergy
Irenicus's Vile Duplication
21% of 14 decks +18% synergy
Preordain
21% of 14 decks +11% synergy
Ponder
21% of 14 decks +9% synergy
Utility Artifacts
Lightning Greaves
36% of 14 decks +10% synergy
Wayfarer's Bauble
29% of 14 decks +18% synergy
Kefnet's Monument
21% of 14 decks +21% synergy
Crystal Shard
21% of 14 decks +20% synergy
Lithoform Engine
21% of 14 decks +20% synergy
Sword of Hearth and Home
21% of 14 decks +19% synergy
Enchantments
Virtue of Knowledge
50% of 6 decks +47% synergy
Propaganda
36% of 14 decks +24% synergy
Future Sight
29% of 14 decks +28% synergy
Mystic Remora
29% of 14 decks +11% synergy
Omniscience
21% of 14 decks +19% synergy
Leyline of Anticipation
21% of 14 decks +17% synergy
Kindred Discovery
21% of 14 decks +14% synergy
Utility Lands
Rivendell
50% of 8 decks +45% synergy
Castle Vantress
43% of 14 decks +39% synergy
Nykthos, Shrine to Nyx
43% of 14 decks +37% synergy
Rogue's Passage
36% of 14 decks +16% synergy
Scavenger Grounds
29% of 14 decks +25% synergy
War Room
29% of 14 decks +22% synergy
Otawara, Soaring City
29% of 14 decks +12% synergy
Halimar Depths
21% of 14 decks +18% synergy
Mana Artifacts
Sol Ring
93% of 14 decks +8% synergy
Arcane Signet
64% of 14 decks -8% synergy
Thought Vessel
50% of 14 decks +33% synergy
Sky Diamond
43% of 14 decks +38% synergy
Mind Stone
43% of 14 decks +25% synergy
Gilded Lotus
21% of 14 decks +18% synergy
Lands
Myriad Landscape
36% of 14 decks +16% synergy