Guile + Temporal Extortion + Professor Onyx

Guile
Temporal Extortion
Professor Onyx

Requires
Guile must be on the battlefield. Temporal Extortion must be in hand. Professor Onyx must be on the battlefield. Your life total is at least 2. Mana needed:
Steps
  1. Cast Temporal Extortion by paying .
  2. Temporal Extortion and Professor Onyx trigger.
  3. Resolve the Temporal Extortion trigger, causing you to pay half your life total, rounded up, and then exile Temporal Extortion and cast it without paying its mana cost due to Guile.
  4. Repeat from step 2 until your life total is four or less.
  5. Temporal Extortion and Professor Onyx trigger.
  6. Resolve the Professor Onyx trigger, causing you to gain two life and each opponent to lose 2 life.
  7. Resolve the Temporal Extortion trigger, causing you to pay half your life total, rounded up, and then exile Temporal Extortion and cast it without paying its mana cost due to Guile.
  8. Repeat from step 5.
Results
Infinite lifegain triggers. Infinite lifeloss. Infinite magecraft triggers. Infinite storm count.

Talion, the Kindly Lord
0.03% of 6814 decks 2 decks
Kydele, Chosen of Kruphix // Vial Smasher the Fierce
0.13% of 747 decks 1 decks
Creatures
Arjun, the Shifting Flame
100% of 1 decks +100% synergy
Jadzi, Oracle of Arcavios
100% of 1 decks +99% synergy
Neera, Wild Mage
100% of 1 decks +99% synergy
Whirlpool Warrior
100% of 1 decks +99% synergy
Sedgemoor Witch
100% of 3 decks +99% synergy
Frilled Mystic
100% of 1 decks +99% synergy
Mystic Snake
100% of 1 decks +98% synergy
Witherbloom Apprentice
100% of 1 decks +98% synergy
Timeless Witness
100% of 1 decks +97% synergy
Oracle of Mul Daya
100% of 1 decks +94% synergy
Eternal Witness
100% of 1 decks +79% synergy
Ethereal Usher
67% of 3 decks +67% synergy
Netherborn Phalanx
67% of 3 decks +67% synergy
Sword Coast Serpent
67% of 3 decks +66% synergy
Deekah, Fractal Theorist
67% of 3 decks +66% synergy
Drift of Phantasms
67% of 3 decks +66% synergy
Brazen Borrower
67% of 3 decks +65% synergy
Venser, Shaper Savant
67% of 3 decks +65% synergy
Jin-Gitaxias, Progress Tyrant
67% of 3 decks +64% synergy
Spellseeker
67% of 3 decks +63% synergy
Hullbreaker Horror
67% of 3 decks +59% synergy
Archmage Emeritus
67% of 3 decks +59% synergy
Sister of Silence
33% of 3 decks +33% synergy
Wizards of Thay
33% of 3 decks +32% synergy
Jace's Archivist
33% of 3 decks +31% synergy
Massacre Girl
33% of 3 decks +31% synergy
Archaeomancer
33% of 3 decks +30% synergy
Displacer Kitten
33% of 3 decks +28% synergy
Notion Thief
33% of 3 decks +26% synergy
Instants
Joint Exploration
100% of 1 decks +97% synergy
Valakut Awakening
100% of 1 decks +94% synergy
Krosan Grip
100% of 1 decks +92% synergy
Rakdos Charm
100% of 1 decks +86% synergy
Terminate
100% of 1 decks +79% synergy
Growth Spiral
100% of 1 decks +78% synergy
Dark Ritual
100% of 3 decks +78% synergy
Chaos Warp
100% of 1 decks +68% synergy
Beast Within
100% of 1 decks +61% synergy
Perilous Voyage
67% of 3 decks +67% synergy
Rona's Vortex
67% of 3 decks +67% synergy
Boing!
67% of 3 decks +66% synergy
Recoil
67% of 3 decks +66% synergy
Dash Hopes
67% of 3 decks +66% synergy
Banishing Knack
67% of 3 decks +66% synergy
Clutch of the Undercity
67% of 3 decks +66% synergy
Retraction Helix
67% of 3 decks +66% synergy
Boomerang
67% of 3 decks +66% synergy
Blink of an Eye
67% of 3 decks +66% synergy
Rain of Filth
67% of 3 decks +66% synergy
Into the Roil
67% of 3 decks +66% synergy
Perplex
67% of 3 decks +65% synergy
Brain Freeze
67% of 3 decks +63% synergy
Muddle the Mixture
67% of 3 decks +62% synergy
Snap
67% of 3 decks +60% synergy
Flusterstorm
67% of 3 decks +60% synergy
Deadly Rollick
67% of 3 decks +56% synergy
Mystical Tutor
67% of 3 decks +52% synergy
Mana Drain
67% of 3 decks +51% synergy
Fierce Guardianship
67% of 3 decks +49% synergy
Vampiric Tutor
67% of 3 decks +48% synergy
Cyclonic Rift
67% of 3 decks +39% synergy
Whim of Volrath
33% of 3 decks +33% synergy
Even the Score
33% of 3 decks +33% synergy
Clockspinning
33% of 3 decks +32% synergy
Price of Fame
33% of 3 decks +32% synergy
Stroke of Genius
33% of 3 decks +32% synergy
Lim-Dûl's Vault
33% of 3 decks +30% synergy
Cabal Ritual
33% of 3 decks +29% synergy
Reality Shift
33% of 3 decks +24% synergy
Frantic Search
33% of 3 decks +21% synergy
An Offer You Can't Refuse
33% of 3 decks +12% synergy
Counterspell
33% of 3 decks -10% synergy
Sorceries
Chain of Acid
100% of 1 decks +100% synergy
Mists of Lórien
100% of 1 decks +99% synergy
Chain of Smog
100% of 3 decks +99% synergy
Wheel of Fate
100% of 1 decks +99% synergy
Villainous Wealth
100% of 1 decks +92% synergy
Bala Ged Recovery
100% of 1 decks +91% synergy
Kodama's Reach
100% of 1 decks +69% synergy
Nature's Lore
100% of 1 decks +68% synergy
Blasphemous Act
100% of 1 decks +66% synergy
Farseek
100% of 1 decks +66% synergy
Cultivate
100% of 1 decks +54% synergy
Eye of Nowhere
67% of 3 decks +67% synergy
Drain Power
67% of 3 decks +67% synergy
Gust of Wind
67% of 3 decks +67% synergy
Void Snare
67% of 3 decks +66% synergy
Tendrils of Agony
67% of 3 decks +66% synergy
Solve the Equation
67% of 3 decks +62% synergy
Ringsight
67% of 3 decks +62% synergy
Demonic Tutor
67% of 3 decks +44% synergy
Rise of the Eldrazi
50% of 2 decks +49% synergy
Mystic Speculation
33% of 3 decks +33% synergy
Exsanguinate
33% of 3 decks +28% synergy
Windfall
33% of 3 decks +20% synergy
Utility Artifacts
Aetherflux Reservoir
67% of 3 decks +63% synergy
Void Mirror
33% of 3 decks +33% synergy
Thousand-Year Elixir
33% of 3 decks +31% synergy
Enchantments
There and Back Again
100% of 1 decks +98% synergy
Cephalid Shrine
67% of 3 decks +67% synergy
In the Eye of Chaos
67% of 3 decks +67% synergy
Nether Void
67% of 3 decks +67% synergy
Seal of Removal
67% of 3 decks +66% synergy
Propaganda
67% of 3 decks +55% synergy
Mystic Remora
67% of 3 decks +49% synergy
Rhystic Study
67% of 3 decks +39% synergy
Waste Not
33% of 3 decks +31% synergy
Teferi's Ageless Insight
33% of 3 decks +28% synergy
Planeswalkers
Tyvar, Jubilant Brawler
100% of 1 decks +95% synergy
Utility Lands
Alchemist's Refuge
100% of 1 decks +93% synergy
Glacial Chasm
67% of 3 decks +66% synergy
Urborg, Tomb of Yawgmoth
67% of 3 decks +57% synergy
Otawara, Soaring City
67% of 3 decks +50% synergy
Cascading Cataracts
33% of 3 decks +32% synergy
Reliquary Tower
33% of 3 decks +4% synergy
Mana Artifacts
Sol Ring
100% of 3 decks +16% synergy
Jeweled Lotus
67% of 3 decks +61% synergy
Lotus Petal
67% of 3 decks +60% synergy
Mana Crypt
67% of 3 decks +58% synergy
Thought Vessel
67% of 3 decks +50% synergy
Dimir Signet
67% of 3 decks +37% synergy
Talisman of Dominance
67% of 3 decks +35% synergy
Arcane Signet
67% of 3 decks -5% synergy
Coveted Jewel
33% of 3 decks +32% synergy
Gilded Lotus
33% of 3 decks +30% synergy
Chromatic Lantern
33% of 3 decks +24% synergy
Lands
Tanglepool Bridge
100% of 1 decks +97% synergy
Darkmoss Bridge
100% of 1 decks +97% synergy
Savage Lands
100% of 1 decks +77% synergy
Llanowar Wastes
100% of 1 decks +74% synergy
Yavimaya Coast
100% of 1 decks +73% synergy
Opulent Palace
100% of 1 decks +73% synergy
Shivan Reef
100% of 1 decks +73% synergy
Frontier Bivouac
100% of 1 decks +73% synergy
Hinterland Harbor
100% of 1 decks +73% synergy
Rejuvenating Springs
100% of 1 decks +71% synergy
Zagoth Triome
100% of 1 decks +69% synergy
Crumbling Necropolis
100% of 1 decks +69% synergy
Ziatora's Proving Ground
100% of 1 decks +68% synergy
Ketria Triome
100% of 1 decks +67% synergy
Cinder Glade
100% of 1 decks +62% synergy
River of Tears
67% of 3 decks +63% synergy
Tainted Isle
67% of 3 decks +56% synergy
Darkwater Catacombs
67% of 3 decks +52% synergy
Shipwreck Marsh
67% of 3 decks +48% synergy
Underground River
67% of 3 decks +47% synergy
Morphic Pool
67% of 3 decks +41% synergy
Watery Grave
67% of 3 decks +26% synergy
Mistvault Bridge
33% of 3 decks +29% synergy
Ash Barrens
33% of 3 decks +29% synergy
Terramorphic Expanse
33% of 3 decks +18% synergy
Evolving Wilds
33% of 3 decks +12% synergy
Sunken Hollow
33% of 3 decks -1% synergy
Exotic Orchard
33% of 3 decks -2% synergy
Command Tower
33% of 3 decks -41% synergy