Gnawing Vermin + Underworld Breach + Phyrexian Altar + Panharmonicon

Gnawing Vermin
Underworld Breach
Phyrexian Altar
Panharmonicon

Requires
Gnawing Vermin must be on the battlefield. Underworld Breach must be on the battlefield. Phyrexian Altar must be on the battlefield. Panharmonicon must be on the battlefield. You have at least three cards in your graveyard.
Steps
  1. Activate Phyrexian Altar by sacrificing Gnawing Vermin, adding .
  2. Gnawing Vermin dies, triggering its second ability, causing target creature you don't control to get -1/-1 until end of turn.
  3. Cast Gnawing Vermin from your graveyard for its escape cost by paying and exiling three other cards from your graveyard.
  4. Gnawing Vermin enters the battlefield, triggering its first ability twice, causing you to mill four cards.
  5. Repeat.
Results
Infinite self-mill. Near-infinite death triggers. Near-infinite ETB. Near-infinite LTB. Near-infinite mill. Near-infinite sacrifice triggers. Near-infinite storm count.

Wick, the Whorled Mind
0.02% of 4884 decks 1 decks
Morophon, the Boundless
0.01% of 9863 decks 1 decks
Creatures
Nezumi Freewheeler
100% of 1 decks +100% synergy
Ashcoat of the Shadow Swarm
100% of 2 decks +99% synergy
Marrow-Gnawer
100% of 2 decks +99% synergy
Voracious Vermin
100% of 2 decks +99% synergy
Lord Skitter's Butcher
100% of 2 decks +99% synergy
Totentanz, Swarm Piper
100% of 2 decks +99% synergy
Mindwhisker
100% of 1 decks +99% synergy
Daggerfang Duo
100% of 1 decks +99% synergy
Persistent Marshstalker
100% of 1 decks +98% synergy
Lord Skitter, Sewer King
100% of 2 decks +98% synergy
Old Rutstein
100% of 1 decks +98% synergy
Shoreline Looter
100% of 1 decks +97% synergy
Vren, the Relentless
100% of 1 decks +97% synergy
Yarok, the Desecrated
100% of 1 decks +97% synergy
Azure Beastbinder
100% of 1 decks +97% synergy
Delney, Streetwise Lookout
100% of 1 decks +95% synergy
Teysa Karlov
100% of 1 decks +95% synergy
Elesh Norn, Mother of Machines
100% of 1 decks +95% synergy
Esper Sentinel
100% of 1 decks +79% synergy
Birds of Paradise
100% of 1 decks +73% synergy
Sanity Gnawers
50% of 2 decks +50% synergy
Earsplitting Rats
50% of 2 decks +50% synergy
Hellhole Rats
50% of 2 decks +50% synergy
Chittering Rats
50% of 2 decks +50% synergy
Nezumi Shortfang
50% of 2 decks +50% synergy
Scrib Nibblers
50% of 2 decks +50% synergy
Drainpipe Vermin
50% of 2 decks +50% synergy
Ratcatcher Trainee
50% of 2 decks +50% synergy
Ravenous Rats
50% of 2 decks +50% synergy
Mad Ratter
50% of 2 decks +50% synergy
Swarm of Rats
50% of 2 decks +50% synergy
Okiba-Gang Shinobi
50% of 2 decks +50% synergy
Rotting Rats
50% of 2 decks +50% synergy
Wave of Rats
50% of 2 decks +49% synergy
Stronghold Rats
50% of 2 decks +49% synergy
Nezumi Prowler
50% of 2 decks +49% synergy
Tangled Colony
50% of 2 decks +49% synergy
Karumonix, the Rat King
50% of 2 decks +49% synergy
Nezumi Informant
50% of 2 decks +49% synergy
Pack Rat
50% of 2 decks +49% synergy
Burglar Rat
50% of 2 decks +49% synergy
Piper of the Swarm
50% of 2 decks +49% synergy
Nashi, Moon Sage's Scion
50% of 2 decks +48% synergy
Warren Soultrader
50% of 2 decks +43% synergy
Instants
Tend the Pests
100% of 1 decks +98% synergy
Frantic Search
100% of 2 decks +88% synergy
Rat Out
50% of 2 decks +50% synergy
Mausoleum Secrets
50% of 2 decks +49% synergy
Lethal Scheme
50% of 2 decks +49% synergy
Brain Freeze
50% of 2 decks +47% synergy
Culling the Weak
50% of 2 decks +46% synergy
High Tide
50% of 2 decks +46% synergy
Demand Answers
50% of 2 decks +42% synergy
Thrill of Possibility
50% of 2 decks +40% synergy
Bedevil
50% of 2 decks +36% synergy
Vampiric Tutor
50% of 2 decks +32% synergy
Dark Ritual
50% of 2 decks +28% synergy
Sorceries
Glimpse the Unthinkable
100% of 2 decks +99% synergy
Song of Totentanz
100% of 2 decks +97% synergy
Coiling Rebirth
100% of 1 decks +97% synergy
Reanimate
100% of 2 decks +84% synergy
Lab Rats
50% of 2 decks +50% synergy
Inner Fire
50% of 2 decks +50% synergy
Path of the Pyromancer
50% of 2 decks +50% synergy
Plague of Vermin
50% of 2 decks +50% synergy
Beseech the Queen
50% of 2 decks +49% synergy
Strike It Rich
50% of 2 decks +48% synergy
Persist
50% of 2 decks +48% synergy
Lively Dirge
50% of 2 decks +48% synergy
Past in Flames
50% of 2 decks +47% synergy
Buried Alive
50% of 2 decks +44% synergy
Read the Bones
50% of 2 decks +42% synergy
Damnation
50% of 2 decks +42% synergy
Night's Whisper
50% of 2 decks +41% synergy
Sign in Blood
50% of 2 decks +40% synergy
Victimize
50% of 2 decks +38% synergy
Vandalblast
50% of 2 decks +34% synergy
Faithless Looting
50% of 2 decks +33% synergy
Jeska's Will
50% of 2 decks +32% synergy
Demonic Tutor
50% of 2 decks +28% synergy
Utility Artifacts
Genesis Chamber
50% of 2 decks +49% synergy
Mesmeric Orb
50% of 2 decks +49% synergy
Bontu's Monument
50% of 2 decks +48% synergy
Vat of Rebirth
50% of 2 decks +48% synergy
Jet Medallion
50% of 2 decks +47% synergy
Altar of Dementia
50% of 2 decks +47% synergy
Basilisk Collar
50% of 2 decks +47% synergy
The Ozolith
50% of 2 decks +47% synergy
Herald's Horn
50% of 2 decks +44% synergy
Skullclamp
50% of 2 decks +38% synergy
Enchantments
Insidious Roots
100% of 1 decks +91% synergy
Tribute to Horobi
50% of 2 decks +50% synergy
Unspeakable Symbol
50% of 2 decks +49% synergy
Mana Echoes
50% of 2 decks +49% synergy
Proft's Eidetic Memory
50% of 2 decks +48% synergy
Sorcerer Class
50% of 2 decks +47% synergy
Virtue of Knowledge
50% of 2 decks +47% synergy
Wizard Class
50% of 2 decks +46% synergy
Grave Pact
50% of 2 decks +46% synergy
Thousand-Year Storm
50% of 2 decks +45% synergy
Phyrexian Arena
50% of 2 decks +35% synergy
Mystic Remora
50% of 2 decks +32% synergy
Rhystic Study
50% of 2 decks +22% synergy
Utility Lands
Boseiju, Who Endures
100% of 1 decks +80% synergy
Cabal Stronghold
50% of 2 decks +46% synergy
Inventors' Fair
50% of 2 decks +46% synergy
Spymaster's Vault
50% of 2 decks +46% synergy
Nykthos, Shrine to Nyx
50% of 2 decks +44% synergy
Urborg, Tomb of Yawgmoth
50% of 2 decks +40% synergy
Cabal Coffers
50% of 2 decks +39% synergy
Reliquary Tower
50% of 2 decks +21% synergy
Mana Artifacts
Arcane Signet
100% of 2 decks +28% synergy
Commander's Sphere
50% of 2 decks +35% synergy
Thought Vessel
50% of 2 decks +33% synergy
Talisman of Indulgence
50% of 2 decks +24% synergy
Rakdos Signet
50% of 2 decks +20% synergy
Dimir Signet
50% of 2 decks +20% synergy
Talisman of Dominance
50% of 2 decks +19% synergy
Sol Ring
50% of 2 decks -34% synergy
Lands
Path of Ancestry
100% of 2 decks +79% synergy
Savai Triome
100% of 1 decks +73% synergy
Xander's Lounge
100% of 2 decks +72% synergy
Raffine's Tower
100% of 1 decks +72% synergy
Zagoth Triome
100% of 1 decks +69% synergy
Indatha Triome
100% of 1 decks +69% synergy
Spara's Headquarters
100% of 1 decks +68% synergy
Ziatora's Proving Ground
100% of 1 decks +68% synergy
Ketria Triome
100% of 1 decks +67% synergy
Jetmir's Garden
100% of 1 decks +67% synergy
Command Tower
100% of 2 decks +26% synergy
Grand Coliseum
50% of 2 decks +50% synergy
City of Brass
50% of 2 decks +42% synergy
Rakdos Carnarium
50% of 2 decks +35% synergy
Haunted Ridge
50% of 2 decks +34% synergy
Dimir Aqueduct
50% of 2 decks +33% synergy
Stormcarved Coast
50% of 2 decks +33% synergy
Shipwreck Marsh
50% of 2 decks +31% synergy
Underground River
50% of 2 decks +31% synergy
Sulfurous Springs
50% of 2 decks +30% synergy
Morphic Pool
50% of 2 decks +24% synergy
Luxury Suite
50% of 2 decks +24% synergy
Training Center
50% of 2 decks +22% synergy
Exotic Orchard
50% of 2 decks +14% synergy