Hell's Caretaker + Corridor Monitor + Pestermite

Hell's Caretaker
Corridor Monitor
Pestermite

Requires
Hell's Caretaker must be on the battlefield. Corridor Monitor must be on the battlefield. Pestermite must be in the graveyard.
Steps
  1. During your upkeep, activate Hell's Caretaker by sacrificing Corridor Montior, returning Pestermite from your graveyard to the battlefield.
  2. Pestermite enters the battlefield, untapping Hell's Caretaker.
  3. Activate Hell's Caretaker by sacrificing Pestermite, returning Corridor Monitor from your graveyard to the battlefield.
  4. Corridor Monitor enters the battlefield, untapping Hell's Caretaker.
  5. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Yarok, the Desecrated
0.01% of 10412 decks 1 decks
Araumi of the Dead Tide
0.03% of 3364 decks 1 decks
Creatures
Molderhulk
100% of 1 decks +100% synergy
Elvish Rejuvenator
100% of 1 decks +99% synergy
Foundation Breaker
100% of 1 decks +99% synergy
Kitesail Larcenist
100% of 1 decks +98% synergy
Elvish Visionary
100% of 1 decks +98% synergy
Soul of the Harvest
100% of 1 decks +97% synergy
End-Raze Forerunners
100% of 1 decks +97% synergy
Titania, Protector of Argoth
100% of 1 decks +97% synergy
Risen Reef
100% of 1 decks +97% synergy
Acidic Slime
100% of 1 decks +96% synergy
Wood Elves
100% of 1 decks +93% synergy
Lotus Cobra
100% of 1 decks +93% synergy
Coiling Oracle
100% of 1 decks +92% synergy
Gray Merchant of Asphodel
100% of 2 decks +91% synergy
Reclamation Sage
100% of 1 decks +89% synergy
Tireless Provisioner
100% of 1 decks +89% synergy
Tatyova, Benthic Druid
100% of 1 decks +88% synergy
Eternal Witness
100% of 1 decks +79% synergy
Merfolk Skyscout
50% of 2 decks +50% synergy
Ashen-Skin Zubera
50% of 2 decks +50% synergy
Cogwork Assembler
50% of 2 decks +50% synergy
Floating-Dream Zubera
50% of 2 decks +50% synergy
Inga Rune-Eyes
50% of 2 decks +50% synergy
Vhal, Candlekeep Researcher
50% of 2 decks +50% synergy
Deceiver Exarch
50% of 2 decks +50% synergy
Scion of Darkness
50% of 2 decks +50% synergy
Champion of Wits
50% of 2 decks +50% synergy
Araumi of the Dead Tide
50% of 2 decks +49% synergy
Fatestitcher
50% of 2 decks +49% synergy
Nimble Obstructionist
50% of 2 decks +49% synergy
Dimir House Guard
50% of 2 decks +49% synergy
Undead Butler
50% of 2 decks +49% synergy
Graveshifter
50% of 2 decks +49% synergy
Vizier of Tumbling Sands
50% of 2 decks +49% synergy
Phyrexian Delver
50% of 2 decks +49% synergy
Archfiend of Ifnir
50% of 2 decks +48% synergy
Cloud of Faeries
50% of 2 decks +48% synergy
Venser, Shaper Savant
50% of 2 decks +48% synergy
Grave Titan
50% of 2 decks +48% synergy
Falkenrath Noble
50% of 2 decks +48% synergy
Gonti, Lord of Luxury
50% of 2 decks +48% synergy
Disciple of Bolas
50% of 2 decks +48% synergy
Shriekmaw
50% of 2 decks +47% synergy
Stitcher's Supplier
50% of 2 decks +47% synergy
Ertai Resurrected
50% of 2 decks +47% synergy
Peregrine Drake
50% of 2 decks +47% synergy
Ravenous Chupacabra
50% of 2 decks +46% synergy
Hostage Taker
50% of 2 decks +45% synergy
Mulldrifter
50% of 2 decks +44% synergy
Hullbreaker Horror
50% of 2 decks +43% synergy
Instants
Roiling Regrowth
100% of 1 decks +97% synergy
Bitter Triumph
100% of 1 decks +95% synergy
Tear Asunder
100% of 1 decks +94% synergy
Entish Restoration
100% of 1 decks +92% synergy
Harrow
100% of 1 decks +90% synergy
Growth Spiral
100% of 1 decks +78% synergy
Negate
100% of 2 decks +77% synergy
Counterspell
100% of 2 decks +57% synergy
Insidious Dreams
50% of 2 decks +50% synergy
Commander's Insight
50% of 2 decks +50% synergy
Engulf the Shore
50% of 2 decks +49% synergy
Perplex
50% of 2 decks +49% synergy
Hostile Negotiations
50% of 2 decks +49% synergy
Thirst for Discovery
50% of 2 decks +49% synergy
Thirst for Knowledge
50% of 2 decks +48% synergy
Essence Flux
50% of 2 decks +48% synergy
Narset's Reversal
50% of 2 decks +46% synergy
Ghostly Flicker
50% of 2 decks +45% synergy
Muddle the Mixture
50% of 2 decks +45% synergy
Fact or Fiction
50% of 2 decks +43% synergy
Frantic Search
50% of 2 decks +38% synergy
Mana Drain
50% of 2 decks +35% synergy
Brainstorm
50% of 2 decks +29% synergy
Sorceries
Over the Edge
100% of 1 decks +99% synergy
Rise of the Witch-king
100% of 1 decks +93% synergy
Explore
100% of 1 decks +91% synergy
Skyshroud Claim
100% of 1 decks +91% synergy
Kodama's Reach
100% of 1 decks +68% synergy
Nature's Lore
100% of 1 decks +68% synergy
Farseek
100% of 1 decks +66% synergy
Cultivate
100% of 1 decks +54% synergy
Syphon Mind
50% of 2 decks +47% synergy
In Garruk's Wake
50% of 2 decks +47% synergy
Dread Return
50% of 2 decks +45% synergy
Buried Alive
50% of 2 decks +44% synergy
Diabolic Intent
50% of 2 decks +41% synergy
Windfall
50% of 2 decks +37% synergy
Reanimate
50% of 2 decks +34% synergy
Utility Artifacts
Soul Foundry
50% of 2 decks +50% synergy
Convergence of Dominion
50% of 2 decks +50% synergy
Prototype Portal
50% of 2 decks +50% synergy
Pact Weapon
50% of 2 decks +49% synergy
Rings of Brighthearth
50% of 2 decks +48% synergy
Crucible of Worlds
50% of 2 decks +47% synergy
Ashnod's Altar
50% of 2 decks +42% synergy
Lightning Greaves
50% of 2 decks +25% synergy
Swiftfoot Boots
50% of 2 decks +22% synergy
Enchantments
Spelunking
100% of 1 decks +95% synergy
Kenrith's Transformation
100% of 1 decks +93% synergy
Teferi's Veil
50% of 2 decks +50% synergy
Confounding Conundrum
50% of 2 decks +49% synergy
Retreat to Hagra
50% of 2 decks +48% synergy
No Mercy
50% of 2 decks +48% synergy
Utility Lands
Pit of Offerings
100% of 1 decks +99% synergy
Restless Vinestalk
100% of 1 decks +97% synergy
Bojuka Bog
100% of 2 decks +70% synergy
Endless Sands
50% of 2 decks +50% synergy
Cryptic Caves
50% of 2 decks +49% synergy
Ghost Quarter
50% of 2 decks +48% synergy
Thespian's Stage
50% of 2 decks +47% synergy
Lonely Sandbar
50% of 2 decks +47% synergy
Barren Moor
50% of 2 decks +46% synergy
Mortuary Mire
50% of 2 decks +45% synergy
Temple of the False God
50% of 2 decks +40% synergy
Mystic Sanctuary
50% of 2 decks +38% synergy
Reliquary Tower
50% of 2 decks +21% synergy
Mana Artifacts
Talisman of Resilience
100% of 1 decks +88% synergy
Talisman of Dominance
100% of 2 decks +69% synergy
Sol Ring
100% of 2 decks +16% synergy
Hedron Archive
50% of 2 decks +47% synergy
Gilded Lotus
50% of 2 decks +47% synergy
Everflowing Chalice
50% of 2 decks +45% synergy
Thought Vessel
50% of 2 decks +33% synergy
Mind Stone
50% of 2 decks +33% synergy
Fellwar Stone
50% of 2 decks +29% synergy
Dimir Signet
50% of 2 decks +20% synergy
Arcane Signet
50% of 2 decks -22% synergy
Lands
Temple of Malady
100% of 1 decks +84% synergy
Temple of Mystery
100% of 1 decks +83% synergy
Golgari Rot Farm
100% of 1 decks +82% synergy
Simic Growth Chamber
100% of 1 decks +80% synergy
Llanowar Wastes
100% of 1 decks +74% synergy
Opulent Palace
100% of 1 decks +73% synergy
Hinterland Harbor
100% of 1 decks +73% synergy
Woodland Cemetery
100% of 1 decks +72% synergy
Sunken Hollow
100% of 2 decks +65% synergy
Command Tower
100% of 2 decks +26% synergy
Terramorphic Expanse
50% of 2 decks +34% synergy
Temple of Deceit
50% of 2 decks +34% synergy
Dimir Aqueduct
50% of 2 decks +33% synergy
Myriad Landscape
50% of 2 decks +30% synergy
Evolving Wilds
50% of 2 decks +29% synergy
Morphic Pool
50% of 2 decks +24% synergy
Exotic Orchard
50% of 2 decks +14% synergy
Watery Grave
50% of 2 decks +9% synergy