Cast Through Time + Venser, Shaper Savant + Erratic Portal + Temporal Manipulation

Cast Through Time
Venser, Shaper Savant
Erratic Portal
Temporal Manipulation

Requires
Cast Through Time must be on the battlefield. Venser, Shaper Savant must be on the battlefield. Erratic Portal must be on the battlefield. Temporal Manipulation must be in hand. 6 available each turn.
Steps
  1. Cast Temporal Manipulation by paying 3, granting you an extra turn after this one and exiling it due to rebound.
  2. At the beginning of your next upkeep, rebound triggers, causing you to cast the exiled spell without paying its mana cost.
  3. In response, activate Erratic Portal by tapping it and paying 1, returning Venser to your hand.
  4. Cast Venser by paying 2.
  5. When Venser enters the battlefield, they trigger, returning the extra turn spell to your hand.
  6. Repeat each turn.
Results
Infinite turns.

The Unspeakable
1.96% of 51 decks 1 decks
Rona, Sheoldred's Faithful
0.17% of 595 decks 1 decks
Creatures
Umbris, Fear Manifest
100% of 1 decks +100% synergy
Puppeteer Clique
100% of 1 decks +98% synergy
Ruthless Technomancer
100% of 1 decks +98% synergy
Jin-Gitaxias, Progress Tyrant
100% of 1 decks +97% synergy
Archaeomancer
100% of 2 decks +96% synergy
Sire of the Storm
50% of 2 decks +50% synergy
Salvager of Secrets
50% of 2 decks +50% synergy
Phantom Steed
50% of 2 decks +50% synergy
Orvar, the All-Form
50% of 2 decks +50% synergy
God-Eternal Kefnet
50% of 2 decks +50% synergy
Mnemonic Wall
50% of 2 decks +49% synergy
Torrential Gearhulk
50% of 2 decks +49% synergy
Keiga, the Tide Star
50% of 2 decks +49% synergy
Emrakul, the Promised End
50% of 2 decks +49% synergy
Duplicant
50% of 2 decks +49% synergy
Ulamog, the Ceaseless Hunger
50% of 2 decks +49% synergy
Jhoira's Familiar
50% of 2 decks +48% synergy
Kozilek, Butcher of Truth
50% of 2 decks +48% synergy
Jin-Gitaxias, Core Augur
50% of 2 decks +48% synergy
Glen Elendra Archmage
50% of 2 decks +48% synergy
Clever Impersonator
50% of 2 decks +47% synergy
Thassa, Deep-Dwelling
50% of 2 decks +47% synergy
Phantasmal Image
50% of 2 decks +46% synergy
Consecrated Sphinx
50% of 2 decks +45% synergy
Mulldrifter
50% of 2 decks +44% synergy
Phyrexian Metamorph
50% of 2 decks +43% synergy
Instants
Cryptic Command
100% of 2 decks +98% synergy
Lim-Dûl's Vault
100% of 1 decks +96% synergy
Mystical Tutor
100% of 2 decks +85% synergy
Vampiric Tutor
100% of 1 decks +82% synergy
Brainstorm
100% of 2 decks +79% synergy
Counterspell
100% of 2 decks +57% synergy
Consuming Vortex
50% of 2 decks +50% synergy
Evermind
50% of 2 decks +50% synergy
Sift Through Sands
50% of 2 decks +50% synergy
Stream of Consciousness
50% of 2 decks +50% synergy
Psychic Puppetry
50% of 2 decks +50% synergy
Toils of Night and Day
50% of 2 decks +50% synergy
Shifting Borders
50% of 2 decks +50% synergy
Veil of Secrecy
50% of 2 decks +50% synergy
Reweave
50% of 2 decks +50% synergy
Disrupting Shoal
50% of 2 decks +50% synergy
Time Stop
50% of 2 decks +50% synergy
Remand
50% of 2 decks +49% synergy
Intuition
50% of 2 decks +48% synergy
Essence Flux
50% of 2 decks +48% synergy
Mystic Confluence
50% of 2 decks +47% synergy
Ghostly Flicker
50% of 2 decks +45% synergy
Dig Through Time
50% of 2 decks +45% synergy
Fact or Fiction
50% of 2 decks +43% synergy
Opt
50% of 2 decks +40% synergy
Force of Will
50% of 2 decks +39% synergy
Mana Drain
50% of 2 decks +35% synergy
Swan Song
50% of 2 decks +33% synergy
Arcane Denial
50% of 2 decks +30% synergy
Cyclonic Rift
50% of 2 decks +22% synergy
Sorceries
Rhystic Tutor
100% of 1 decks +100% synergy
Walk the Aeons
100% of 2 decks +99% synergy
Damnation
100% of 1 decks +92% synergy
Preordain
100% of 2 decks +89% synergy
Ponder
100% of 2 decks +87% synergy
Toxic Deluge
100% of 1 decks +83% synergy
Demonic Tutor
100% of 1 decks +78% synergy
Temporal Machinations
50% of 2 decks +50% synergy
Petals of Insight
50% of 2 decks +50% synergy
Eerie Procession
50% of 2 decks +50% synergy
Eye of Nowhere
50% of 2 decks +50% synergy
Temporal Cascade
50% of 2 decks +50% synergy
Ribbons of the Reikai
50% of 2 decks +50% synergy
Temporal Fissure
50% of 2 decks +50% synergy
Mystic Speculation
50% of 2 decks +50% synergy
Temporal Trespass
50% of 2 decks +49% synergy
Personal Tutor
50% of 2 decks +49% synergy
Temporal Mastery
50% of 2 decks +49% synergy
Merchant Scroll
50% of 2 decks +48% synergy
Time Warp
50% of 2 decks +48% synergy
Serum Visions
50% of 2 decks +46% synergy
Treasure Cruise
50% of 2 decks +45% synergy
Fabricate
50% of 2 decks +44% synergy
Utility Artifacts
Temporal Aperture
50% of 2 decks +50% synergy
Long-Forgotten Gohei
50% of 2 decks +50% synergy
Mindslaver
50% of 2 decks +50% synergy
Semblance Anvil
50% of 2 decks +49% synergy
Crystal Shard
50% of 2 decks +49% synergy
Nevinyrral's Disk
50% of 2 decks +49% synergy
Cloud Key
50% of 2 decks +48% synergy
Conjurer's Closet
50% of 2 decks +48% synergy
Sensei's Divining Top
50% of 2 decks +44% synergy
Enchantments
One with the Multiverse
100% of 1 decks +98% synergy
Necropotence
100% of 1 decks +95% synergy
Phyrexian Arena
100% of 1 decks +85% synergy
Temporal Distortion
50% of 2 decks +50% synergy
Future Sight
50% of 2 decks +49% synergy
Pemmin's Aura
50% of 2 decks +49% synergy
Rhystic Study
50% of 2 decks +22% synergy
Planeswalkers
Teferi, Temporal Archmage
50% of 2 decks +49% synergy
Karn, the Great Creator
50% of 2 decks +49% synergy
Jace, the Mind Sculptor
50% of 2 decks +49% synergy
Utility Lands
Halimar Depths
100% of 2 decks +97% synergy
Bojuka Bog
100% of 1 decks +70% synergy
Blighted Cataract
50% of 2 decks +50% synergy
Memorial to Genius
50% of 2 decks +50% synergy
Tectonic Edge
50% of 2 decks +49% synergy
Coral Atoll
50% of 2 decks +49% synergy
Terrain Generator
50% of 2 decks +49% synergy
Desert of the Mindful
50% of 2 decks +49% synergy
Remote Isle
50% of 2 decks +49% synergy
Wasteland
50% of 2 decks +49% synergy
Strip Mine
50% of 2 decks +47% synergy
Lonely Sandbar
50% of 2 decks +47% synergy
Castle Vantress
50% of 2 decks +46% synergy
Command Beacon
50% of 2 decks +45% synergy
Nykthos, Shrine to Nyx
50% of 2 decks +44% synergy
War Room
50% of 2 decks +44% synergy
Temple of the False God
50% of 2 decks +40% synergy
Urborg, Tomb of Yawgmoth
50% of 2 decks +40% synergy
Mystic Sanctuary
50% of 2 decks +38% synergy
Rogue's Passage
50% of 2 decks +31% synergy
Reliquary Tower
50% of 2 decks +21% synergy
Mana Artifacts
Dimir Keyrune
100% of 1 decks +99% synergy
Gilded Lotus
100% of 2 decks +97% synergy
Commander's Sphere
100% of 2 decks +85% synergy
Thought Vessel
100% of 2 decks +83% synergy
Dimir Signet
100% of 1 decks +70% synergy
Talisman of Dominance
100% of 1 decks +69% synergy
Arcane Signet
100% of 2 decks +28% synergy
Sol Ring
100% of 2 decks +16% synergy
Mana Vault
50% of 2 decks +44% synergy
Mind Stone
50% of 2 decks +33% synergy
Fellwar Stone
50% of 2 decks +29% synergy
Lands
Underground Sea
100% of 1 decks +86% synergy
Choked Estuary
100% of 1 decks +83% synergy
Dimir Aqueduct
100% of 1 decks +83% synergy
Shipwreck Marsh
100% of 1 decks +81% synergy
Drowned Catacomb
100% of 1 decks +75% synergy
Sunken Hollow
100% of 1 decks +65% synergy
Watery Grave
100% of 1 decks +59% synergy
Reflecting Pool
50% of 2 decks +45% synergy
Cavern of Souls
50% of 2 decks +43% synergy
Polluted Delta
50% of 2 decks +39% synergy
Terramorphic Expanse
50% of 2 decks +34% synergy
Myriad Landscape
50% of 2 decks +30% synergy
Evolving Wilds
50% of 2 decks +29% synergy
Path of Ancestry
50% of 2 decks +29% synergy
Command Tower
50% of 2 decks -24% synergy