Serrated Biskelion + Thornbite Staff + Thran Vigil + Phyrexian Altar + Butcher Ghoul

Serrated Biskelion
Thornbite Staff
Thran Vigil
Phyrexian Altar
Butcher Ghoul

Requires
Serrated Biskelion must be on the battlefield. Thornbite Staff must be on the battlefield. Thran Vigil must be on the battlefield. Phyrexian Altar must be on the battlefield. Butcher Ghoul must be on the battlefield. Serrated Biskelion does not have summoning sickness. Thornbite Staff attached to Serrated Biskelion. Butcher Ghoul does not have more than one +1/+1 counter on it.
Steps
  1. Activate Serrated Biskelion by tapping it, putting a -1/-1 counter on it and Butcher Ghoul.
  2. Activate Phyrexian Altar by sacrificing Butcher Ghoul, adding one mana of any color.
  3. When Butcher Ghoul dies, its undying ability and Serrated Biskelion trigger.
  4. Resolve the Serrated Biskelion trigger, untapping it.
  5. Resolve the Butcher Ghoul trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  6. When Butcher Ghoul leaves your graveyard, Thran Vigil triggers, putting a +1/+1 counter on Serrated Biskelion.
  7. Repeat.
Results
Infinite colored mana. Infinite death triggers. Infinite ETB. Infinite lifeloss. Infinite LTB. Infinite sacrifice triggers.

Ghoulcaller Gisa
0.03% of 2866 decks 1 decks
Imotekh the Stormlord
0.02% of 6520 decks 1 decks
Creatures
Arcbound Condor
100% of 1 decks +99% synergy
Champion of the Perished
100% of 2 decks +96% synergy
Retrofitted Transmogrant
100% of 1 decks +96% synergy
Gravecrawler
100% of 2 decks +91% synergy
Marionette Apprentice
100% of 1 decks +88% synergy
Matter Reshaper
50% of 2 decks +50% synergy
Dross Scorpion
50% of 2 decks +50% synergy
Myr Battlesphere
50% of 2 decks +49% synergy
Ravenous Rotbelly
50% of 2 decks +49% synergy
Vizier of the Scorpion
50% of 2 decks +49% synergy
Vogar, Necropolis Tyrant
50% of 2 decks +49% synergy
Archghoul of Thraben
50% of 2 decks +48% synergy
Feral Ghoul
50% of 2 decks +48% synergy
Josu Vess, Lich Knight
50% of 2 decks +48% synergy
Hexmark Destroyer
50% of 2 decks +48% synergy
Tomb Tyrant
50% of 2 decks +48% synergy
Kaervek, the Spiteful
50% of 2 decks +48% synergy
Lord of the Undead
50% of 2 decks +47% synergy
Cryptbreaker
50% of 2 decks +47% synergy
Headless Rider
50% of 2 decks +47% synergy
Undead Warchief
50% of 2 decks +47% synergy
Hunted Bonebrute
50% of 2 decks +46% synergy
Diregraf Colossus
50% of 2 decks +46% synergy
Cemetery Reaper
50% of 2 decks +46% synergy
Royal Warden
50% of 2 decks +46% synergy
Cryptek
50% of 2 decks +46% synergy
Lord of the Accursed
50% of 2 decks +46% synergy
Psychomancer
50% of 2 decks +46% synergy
Scrap Trawler
50% of 2 decks +46% synergy
Canoptek Spyder
50% of 2 decks +46% synergy
Anrakyr the Traveller
50% of 2 decks +46% synergy
Skorpekh Lord
50% of 2 decks +45% synergy
Foundry Inspector
50% of 2 decks +45% synergy
Endrek Sahr, Master Breeder
50% of 2 decks +45% synergy
Undead Augur
50% of 2 decks +45% synergy
Cryptothrall
50% of 2 decks +45% synergy
Death Baron
50% of 2 decks +45% synergy
Chronomancer
50% of 2 decks +45% synergy
Necron Deathmark
50% of 2 decks +44% synergy
Massacre Girl, Known Killer
50% of 2 decks +44% synergy
Midnight Reaper
50% of 2 decks +41% synergy
Jadar, Ghoulcaller of Nephalia
50% of 2 decks +41% synergy
Vein Ripper
50% of 2 decks +40% synergy
Mirkwood Bats
50% of 2 decks +38% synergy
Pitiless Plunderer
50% of 2 decks +36% synergy
Zulaport Cutthroat
50% of 2 decks +27% synergy
Ayara, First of Locthwain
50% of 2 decks +23% synergy
Gray Merchant of Asphodel
50% of 2 decks -4% synergy
Instants
Empty the Pits
50% of 2 decks +50% synergy
Darkness
50% of 2 decks +42% synergy
Doom Blade
50% of 2 decks +41% synergy
Baleful Mastery
50% of 2 decks +38% synergy
Entomb
50% of 2 decks +37% synergy
Deadly Dispute
50% of 2 decks +30% synergy
Go for the Throat
50% of 2 decks +25% synergy
Infernal Grasp
50% of 2 decks +23% synergy
Dark Ritual
50% of 2 decks -15% synergy
Sorceries
Insatiable Avarice
100% of 1 decks +80% synergy
Deadly Cover-Up
50% of 2 decks +49% synergy
Cemetery Recruitment
50% of 2 decks +49% synergy
Their Number Is Legion
50% of 2 decks +46% synergy
Persist
50% of 2 decks +46% synergy
Their Name Is Death
50% of 2 decks +45% synergy
Beacon of Unrest
50% of 2 decks +44% synergy
Patriarch's Bidding
50% of 2 decks +44% synergy
Breach the Multiverse
50% of 2 decks +41% synergy
Buried Alive
50% of 2 decks +39% synergy
Living Death
50% of 2 decks +38% synergy
Dread Return
50% of 2 decks +37% synergy
Victimize
50% of 2 decks +28% synergy
Night's Whisper
50% of 2 decks +26% synergy
Reanimate
50% of 2 decks +17% synergy
Feed the Swarm
50% of 2 decks -5% synergy
Utility Artifacts
Sword of the Meek
50% of 2 decks +50% synergy
Summoning Station
50% of 2 decks +50% synergy
Spine of Ish Sah
50% of 2 decks +49% synergy
Krark-Clan Ironworks
50% of 2 decks +48% synergy
Unwinding Clock
50% of 2 decks +48% synergy
Eldrazi Monument
50% of 2 decks +48% synergy
Transmogrant's Crown
50% of 2 decks +48% synergy
Portal to Phyrexia
50% of 2 decks +47% synergy
Coat of Arms
50% of 2 decks +46% synergy
Endless Atlas
50% of 2 decks +46% synergy
Nim Deathmantle
50% of 2 decks +46% synergy
Mystic Forge
50% of 2 decks +45% synergy
Vat of Rebirth
50% of 2 decks +44% synergy
Wishclaw Talisman
50% of 2 decks +43% synergy
The One Ring
50% of 2 decks +39% synergy
Whip of Erebos
50% of 2 decks +39% synergy
Expedition Map
50% of 2 decks +35% synergy
Ashnod's Altar
50% of 2 decks +31% synergy
Lightning Greaves
50% of 2 decks +17% synergy
Jet Medallion
50% of 2 decks +0% synergy
Enchantments
Biotransference
100% of 2 decks +95% synergy
Ripples of Undeath
100% of 1 decks +93% synergy
Haunted Crossroads
50% of 2 decks +49% synergy
Liliana's Mastery
50% of 2 decks +47% synergy
Endless Ranks of the Dead
50% of 2 decks +46% synergy
Bad Moon
50% of 2 decks +46% synergy
Out of the Tombs
50% of 2 decks +45% synergy
Oversold Cemetery
50% of 2 decks +45% synergy
Tortured Existence
50% of 2 decks +45% synergy
Phyrexian Reclamation
50% of 2 decks +38% synergy
The Meathook Massacre
50% of 2 decks +35% synergy
Grave Pact
50% of 2 decks +34% synergy
Phyrexian Arena
50% of 2 decks +11% synergy
Planeswalkers
Liliana of the Dark Realms
50% of 2 decks +38% synergy
Utility Lands
Fomori Vault
100% of 1 decks +99% synergy
Polluted Mire
100% of 2 decks +95% synergy
High Market
100% of 2 decks +94% synergy
Crypt of Agadeem
100% of 2 decks +89% synergy
Mortuary Mire
100% of 2 decks +86% synergy
Rogue's Passage
100% of 2 decks +84% synergy
War Room
100% of 2 decks +83% synergy
Takenuma, Abandoned Mire
100% of 2 decks +82% synergy
Phyrexian Tower
100% of 2 decks +79% synergy
Nykthos, Shrine to Nyx
100% of 2 decks +70% synergy
Reliquary Tower
100% of 2 decks +68% synergy
Urborg, Tomb of Yawgmoth
100% of 2 decks +61% synergy
Sequestered Stash
50% of 2 decks +49% synergy
Field of the Dead
50% of 2 decks +49% synergy
Unholy Grotto
50% of 2 decks +49% synergy
Everglades
50% of 2 decks +48% synergy
Hidden Necropolis
50% of 2 decks +47% synergy
Memorial to Folly
50% of 2 decks +46% synergy
Volrath's Stronghold
50% of 2 decks +46% synergy
Buried Ruin
50% of 2 decks +43% synergy
Vault of Whispers
50% of 2 decks +43% synergy
Tomb Fortress
50% of 2 decks +43% synergy
Temple of the False God
50% of 2 decks +42% synergy
Urza's Saga
50% of 2 decks +41% synergy
Ancient Tomb
50% of 2 decks +37% synergy
Castle Locthwain
50% of 2 decks +29% synergy
Witch's Cottage
50% of 2 decks +25% synergy
Cabal Stronghold
50% of 2 decks +11% synergy
Bojuka Bog
50% of 2 decks +3% synergy
Mana Artifacts
Sol Ring
100% of 2 decks +13% synergy
Mana Vault
50% of 2 decks +42% synergy
Nyx Lotus
50% of 2 decks +40% synergy
Commander's Sphere
50% of 2 decks +38% synergy
Sceptre of Eternal Glory
50% of 2 decks +37% synergy
Thought Vessel
50% of 2 decks +22% synergy
Arcane Signet
50% of 2 decks -14% synergy
Lands
Demolition Field
100% of 2 decks +94% synergy
Urza's Cave
100% of 1 decks +89% synergy
Myriad Landscape
100% of 2 decks +70% synergy
Scene of the Crime
50% of 2 decks +49% synergy
The Mycosynth Gardens
50% of 2 decks +48% synergy
Command Tower
50% of 2 decks +45% synergy
Cavern of Souls
50% of 2 decks +44% synergy