Kenrith, the Returned King + Eternal Witness + Capture of Jingzhou + Ashnod's Altar

Kenrith, the Returned King
Eternal Witness
Capture of Jingzhou
Ashnod's Altar

Requires
Kenrith, the Returned King must be on the battlefield. Eternal Witness must be on the battlefield. Capture of Jingzhou must be in the graveyard. Ashnod's Altar must be on the battlefield. Mana needed: 5uub each turn
Steps
  1. Activate Ashnod's Altar by sacrificing Eternal Witness, adding cc.
  2. Activate Kenrith's last ability by paying 4b, returning Eternal Witness from your graveyard to the battlefield.
  3. Eternal Witness enters the battlefield, returning Capture of Jingzhou from your graveyard to your hand.
  4. Cast Capture of Jingzhou by paying 3uu, causing you to take an extra turn after this one.
  5. Repeat.
Results
Infinite turns.

Top Commanders (1)
Kenrith, the Returned King
0.01% of 19115 decks 2 decks
Creatures (47)
Peregrine Drake
100% of 2 decks +99% synergy
Emiel the Blessed
100% of 2 decks +97% synergy
Thassa's Oracle
100% of 2 decks +95% synergy
Orcish Bowmasters
100% of 1 decks +95% synergy
Agatha of the Vile Cauldron
100% of 1 decks +94% synergy
Dockside Extortionist
100% of 2 decks +89% synergy
Kutzil, Malamet Exemplar
100% of 1 decks +86% synergy
Cache Raiders
50% of 2 decks +50% synergy
Salvager of Secrets
50% of 2 decks +50% synergy
Scholar of the Ages
50% of 2 decks +50% synergy
Great Whale
50% of 2 decks +50% synergy
Soulfire Grand Master
50% of 2 decks +50% synergy
Mnemonic Wall
50% of 2 decks +50% synergy
Ardent Elementalist
50% of 2 decks +50% synergy
Izzet Chronarch
50% of 2 decks +50% synergy
Cloud of Faeries
50% of 2 decks +50% synergy
Palinchron
50% of 2 decks +50% synergy
Riku of Two Reflections
50% of 2 decks +50% synergy
Preston, the Vanisher
50% of 2 decks +50% synergy
Accomplished Alchemist
50% of 2 decks +50% synergy
Malevolent Hermit
50% of 2 decks +50% synergy
Greenwarden of Murasa
50% of 2 decks +50% synergy
Mistmeadow Witch
50% of 2 decks +50% synergy
Archaeomancer
50% of 2 decks +50% synergy
Viscera Seer
50% of 2 decks +49% synergy
Timeless Witness
50% of 2 decks +49% synergy
Temur Sabertooth
50% of 2 decks +49% synergy
Varragoth, Bloodsky Sire
50% of 2 decks +49% synergy
Progenitor Mimic
50% of 2 decks +49% synergy
Eldrazi Displacer
50% of 2 decks +49% synergy
Triskaidekaphile
50% of 2 decks +49% synergy
Myrel, Shield of Argive
50% of 2 decks +49% synergy
Deadeye Navigator
50% of 2 decks +49% synergy
Soulherder
50% of 2 decks +48% synergy
Thassa, Deep-Dwelling
50% of 2 decks +48% synergy
Yarok, the Desecrated
50% of 2 decks +47% synergy
Displacer Kitten
50% of 2 decks +47% synergy
Phantasmal Image
50% of 2 decks +47% synergy
Brago, King Eternal
50% of 2 decks +47% synergy
Opposition Agent
50% of 2 decks +46% synergy
Grand Abolisher
50% of 2 decks +46% synergy
Selvala, Heart of the Wilds
50% of 2 decks +46% synergy
Elesh Norn, Mother of Machines
50% of 2 decks +45% synergy
Sanctum Weaver
50% of 2 decks +40% synergy
Dryad of the Ilysian Grove
50% of 2 decks +36% synergy
Bloom Tender
50% of 2 decks +31% synergy
Faeburrow Elder
50% of 2 decks +26% synergy
Instants (28)
Illusionist's Stratagem
50% of 2 decks +50% synergy
Acrobatic Maneuver
50% of 2 decks +50% synergy
Blur
50% of 2 decks +50% synergy
Essence Flux
50% of 2 decks +49% synergy
Displace
50% of 2 decks +49% synergy
Ghostway
50% of 2 decks +49% synergy
Lae'zel's Acrobatics
50% of 2 decks +49% synergy
Momentary Blink
50% of 2 decks +49% synergy
Cloudshift
50% of 2 decks +49% synergy
Flicker of Fate
50% of 2 decks +49% synergy
Semester's End
50% of 2 decks +49% synergy
Ghostly Flicker
50% of 2 decks +48% synergy
Eerie Interlude
50% of 2 decks +48% synergy
Ad Nauseam
50% of 2 decks +48% synergy
Ephemerate
50% of 2 decks +47% synergy
Tainted Pact
50% of 2 decks +46% synergy
Demonic Consultation
50% of 2 decks +46% synergy
Force of Negation
50% of 2 decks +46% synergy
Arcane Denial
50% of 2 decks +44% synergy
Force of Will
50% of 2 decks +44% synergy
Mana Drain
50% of 2 decks +41% synergy
Generous Gift
50% of 2 decks +41% synergy
Worldly Tutor
50% of 2 decks +38% synergy
Fierce Guardianship
50% of 2 decks +38% synergy
Enlightened Tutor
50% of 2 decks +34% synergy
Vampiric Tutor
50% of 2 decks +32% synergy
Path to Exile
50% of 2 decks +27% synergy
Swords to Plowshares
50% of 2 decks +9% synergy
Sorceries (13)
Time Warp
100% of 2 decks +99% synergy
Walk the Aeons
50% of 2 decks +50% synergy
Increasing Ambition
50% of 2 decks +50% synergy
Illicit Shipment
50% of 2 decks +50% synergy
Temporal Manipulation
50% of 2 decks +50% synergy
Time Stretch
50% of 2 decks +49% synergy
Rite of Replication
50% of 2 decks +48% synergy
Search for Glory
50% of 2 decks +48% synergy
Time of Need
50% of 2 decks +48% synergy
Gamble
50% of 2 decks +47% synergy
Profane Tutor
50% of 2 decks +47% synergy
Diabolic Tutor
50% of 2 decks +46% synergy
Demonic Tutor
50% of 2 decks +28% synergy
Utility Artifacts (12)
Phyrexian Altar
100% of 2 decks +99% synergy
Conduit of Worlds
100% of 1 decks +97% synergy
The One Ring
100% of 1 decks +92% synergy
Transmogrant Altar
50% of 2 decks +50% synergy
Erratic Portal
50% of 2 decks +50% synergy
Umbral Mantle
50% of 2 decks +50% synergy
Crystal Shard
50% of 2 decks +50% synergy
Cloudstone Curio
50% of 2 decks +50% synergy
Altar of Dementia
50% of 2 decks +49% synergy
Staff of Domination
50% of 2 decks +49% synergy
Conjurer's Closet
50% of 2 decks +49% synergy
Panharmonicon
50% of 2 decks +47% synergy
Enchantments (18)
Thassa's Ire
50% of 2 decks +50% synergy
Meticulous Excavation
50% of 2 decks +50% synergy
Followed Footsteps
50% of 2 decks +50% synergy
Teferi's Ageless Insight
50% of 2 decks +49% synergy
Solitary Confinement
50% of 2 decks +49% synergy
Copy Enchantment
50% of 2 decks +49% synergy
Molten Echoes
50% of 2 decks +49% synergy
Imprisoned in the Moon
50% of 2 decks +48% synergy
Freed from the Real
50% of 2 decks +48% synergy
Teleportation Circle
50% of 2 decks +48% synergy
Darksteel Mutation
50% of 2 decks +48% synergy
Prismatic Omen
50% of 2 decks +46% synergy
Sylvan Library
50% of 2 decks +41% synergy
Sterling Grove
50% of 2 decks +40% synergy
Rhythm of the Wild
50% of 2 decks +38% synergy
Mystic Remora
50% of 2 decks +38% synergy
Smothering Tithe
50% of 2 decks +28% synergy
Rhystic Study
50% of 2 decks +26% synergy
Planeswalkers (3)
Karn, the Great Creator
50% of 2 decks +49% synergy
Aminatou, the Fateshifter
50% of 2 decks +48% synergy
Ashiok, Dream Render
50% of 2 decks +48% synergy
Utility Lands (10)
City of Shadows
50% of 2 decks +50% synergy
Scorched Ruins
50% of 2 decks +50% synergy
Lotus Vale
50% of 2 decks +50% synergy
Guildless Commons
50% of 2 decks +50% synergy
City of Traitors
50% of 2 decks +50% synergy
Lotus Field
50% of 2 decks +49% synergy
Vesuva
50% of 2 decks +48% synergy
Thespian's Stage
50% of 2 decks +48% synergy
Temple of the False God
50% of 2 decks +44% synergy
Reliquary Tower
50% of 2 decks +28% synergy
Mana Artifacts (6)
Thought Vessel
50% of 2 decks +44% synergy
Jeweled Lotus
50% of 2 decks +44% synergy
Commander's Sphere
50% of 2 decks +28% synergy
Chromatic Lantern
50% of 2 decks -2% synergy
Arcane Signet
50% of 2 decks -22% synergy
Sol Ring
50% of 2 decks -26% synergy
Lands (28)
Rakdos Carnarium
50% of 2 decks +48% synergy
Orzhov Basilica
50% of 2 decks +48% synergy
Dimir Aqueduct
50% of 2 decks +48% synergy
Izzet Boilerworks
50% of 2 decks +48% synergy
Golgari Rot Farm
50% of 2 decks +48% synergy
Boros Garrison
50% of 2 decks +48% synergy
Azorius Chancery
50% of 2 decks +48% synergy
Selesnya Sanctuary
50% of 2 decks +48% synergy
Gruul Turf
50% of 2 decks +48% synergy
Underground River
50% of 2 decks +48% synergy
Simic Growth Chamber
50% of 2 decks +48% synergy
Adarkar Wastes
50% of 2 decks +47% synergy
Shivan Reef
50% of 2 decks +46% synergy
Yavimaya Coast
50% of 2 decks +44% synergy
Bloodstained Mire
50% of 2 decks +28% synergy
Flooded Strand
50% of 2 decks +26% synergy
Scalding Tarn
50% of 2 decks +24% synergy
Watery Grave
50% of 2 decks +23% synergy
Steam Vents
50% of 2 decks +23% synergy
Arid Mesa
50% of 2 decks +22% synergy
Marsh Flats
50% of 2 decks +22% synergy
Verdant Catacombs
50% of 2 decks +21% synergy
Misty Rainforest
50% of 2 decks +20% synergy
Overgrown Tomb
50% of 2 decks +18% synergy
Stomping Ground
50% of 2 decks +18% synergy
Breeding Pool
50% of 2 decks +18% synergy
Temple Garden
50% of 2 decks +17% synergy
Command Tower
50% of 2 decks -38% synergy