Fain, the Broker + Thornbite Staff + Crystalline Crawler + Gravecrawler

Fain, the Broker
Thornbite Staff
Crystalline Crawler
Gravecrawler

Requires
Fain, the Broker must be on the battlefield. Thornbite Staff must be on the battlefield. Crystalline Crawler must be on the battlefield. Gravecrawler must be on the battlefield. Thornbite Staff attached to Fain. Fain does not have summoning sickness. You control at least one additional Zombie.
Steps
  1. Activate Fain's first ability by tapping it and sacrificing Gravecrawler.
  2. Gravecrawler dies, triggering Fain, untapping it.
  3. Resolve the Fain ability from step 1, putting two +1/+1 counters on Crystalline Crawler.
  4. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding .
  5. Cast Gravecrawler from your graveyard by paying .
  6. Repeat.
  7. Once you have infinite mana and counters, you may instead activate Fain's other abilities.
Results
Infinite +1/+1 counters. Infinite colored mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite Treasure tokens.

Fain, the Broker
1.08% of 279 decks 3 decks
Creatures
Marionette Apprentice
100% of 1 decks +88% synergy
Reassembling Skeleton
100% of 3 decks +85% synergy
Arcbound Crusher
67% of 3 decks +67% synergy
Arcbound Reclaimer
67% of 3 decks +66% synergy
Rotlung Reanimator
67% of 3 decks +66% synergy
Xathrid Necromancer
67% of 3 decks +66% synergy
Tenacious Dead
67% of 3 decks +66% synergy
Mindless Automaton
67% of 3 decks +66% synergy
Puppeteer Clique
67% of 3 decks +65% synergy
Walking Ballista
67% of 3 decks +64% synergy
Marionette Master
67% of 3 decks +63% synergy
Mikaeus, the Unhallowed
67% of 3 decks +58% synergy
Carrion Feeder
67% of 3 decks +57% synergy
Pitiless Plunderer
67% of 3 decks +53% synergy
Zulaport Cutthroat
67% of 3 decks +43% synergy
Forge, Neverwinter Charlatan
50% of 2 decks +49% synergy
Mirkwood Bats
50% of 2 decks +38% synergy
Arcbound Overseer
33% of 3 decks +33% synergy
Pentavus
33% of 3 decks +33% synergy
Lesser Masticore
33% of 3 decks +33% synergy
Lingering Tormentor
33% of 3 decks +33% synergy
Arcbound Ravager
33% of 3 decks +33% synergy
Ruthless Knave
33% of 3 decks +33% synergy
Stonecoil Serpent
33% of 3 decks +33% synergy
Xiahou Dun, the One-Eyed
33% of 3 decks +33% synergy
Academy Manufactor
33% of 3 decks +33% synergy
Gleaming Barrier
33% of 3 decks +32% synergy
Undercity Scrounger
33% of 3 decks +32% synergy
Hangarback Walker
33% of 3 decks +32% synergy
Putrid Goblin
33% of 3 decks +32% synergy
Steel Overseer
33% of 3 decks +32% synergy
Vengeful Dead
33% of 3 decks +32% synergy
Ruthless Technomancer
33% of 3 decks +32% synergy
Bloodthrone Vampire
33% of 3 decks +32% synergy
Weaponcraft Enthusiast
33% of 3 decks +32% synergy
Triskelion
33% of 3 decks +32% synergy
Workshop Assistant
33% of 3 decks +31% synergy
Disciple of the Vault
33% of 3 decks +31% synergy
Palladium Myr
33% of 3 decks +31% synergy
Butcher Ghoul
33% of 3 decks +31% synergy
Geralf's Messenger
33% of 3 decks +30% synergy
Sifter of Skulls
33% of 3 decks +30% synergy
Shriekmaw
33% of 3 decks +30% synergy
Undead Augur
33% of 3 decks +29% synergy
Myr Retriever
33% of 3 decks +29% synergy
Foundry Inspector
33% of 3 decks +28% synergy
Merciless Executioner
33% of 3 decks +28% synergy
Sidisi, Undead Vizier
33% of 3 decks +28% synergy
Pawn of Ulamog
33% of 3 decks +25% synergy
Noxious Gearhulk
33% of 3 decks +25% synergy
Instants
Fanatical Offering
100% of 1 decks +97% synergy
Deadly Dispute
67% of 3 decks +46% synergy
Deadly Derision
50% of 2 decks +50% synergy
Insidious Dreams
33% of 3 decks +33% synergy
Price of Fame
33% of 3 decks +31% synergy
Necrologia
33% of 3 decks +31% synergy
Fake Your Own Death
33% of 3 decks +30% synergy
Malicious Affliction
33% of 3 decks +30% synergy
Cut Down
33% of 3 decks +27% synergy
Feign Death
33% of 3 decks +26% synergy
Doom Blade
33% of 3 decks +24% synergy
Cabal Ritual
33% of 3 decks +16% synergy
Deadly Rollick
33% of 3 decks +13% synergy
Malakir Rebirth
33% of 3 decks +12% synergy
Go for the Throat
33% of 3 decks +8% synergy
Vampiric Tutor
33% of 3 decks +8% synergy
Defile
33% of 3 decks -8% synergy
Dark Ritual
33% of 3 decks -32% synergy
Sorceries
Beseech the Queen
67% of 3 decks +59% synergy
Diabolic Intent
67% of 3 decks +52% synergy
Diabolic Tutor
67% of 3 decks +50% synergy
Feed the Swarm
67% of 3 decks +11% synergy
Diabolic Revelation
33% of 3 decks +33% synergy
Cut of the Profits
33% of 3 decks +32% synergy
Dead of Winter
33% of 3 decks +32% synergy
Promise of Power
33% of 3 decks +32% synergy
Blood Money
33% of 3 decks +31% synergy
Chain of Smog
33% of 3 decks +28% synergy
Dark Petition
33% of 3 decks +28% synergy
Beacon of Unrest
33% of 3 decks +27% synergy
Imperial Seal
33% of 3 decks +26% synergy
Dread Return
33% of 3 decks +20% synergy
Grim Tutor
33% of 3 decks +20% synergy
Dark Deal
33% of 3 decks +20% synergy
Torment of Hailfire
33% of 3 decks +15% synergy
Exsanguinate
33% of 3 decks +11% synergy
Victimize
33% of 3 decks +11% synergy
Read the Bones
33% of 3 decks +11% synergy
Damnation
33% of 3 decks +10% synergy
Mutilate
33% of 3 decks +9% synergy
Demonic Tutor
33% of 3 decks +2% synergy
Reanimate
33% of 3 decks +0% synergy
Toxic Deluge
33% of 3 decks -0% synergy
Sign in Blood
33% of 3 decks -7% synergy
Utility Artifacts
Ashnod's Altar
100% of 3 decks +81% synergy
Animation Module
67% of 3 decks +66% synergy
Mycosynth Lattice
67% of 3 decks +66% synergy
Maskwood Nexus
67% of 3 decks +66% synergy
Krark-Clan Ironworks
67% of 3 decks +65% synergy
Thousand-Year Elixir
67% of 3 decks +65% synergy
Staff of Domination
67% of 3 decks +64% synergy
Phyrexian Altar
67% of 3 decks +55% synergy
Agatha's Soul Cauldron
50% of 2 decks +49% synergy
Vat of Rebirth
50% of 2 decks +44% synergy
Executioner's Capsule
33% of 3 decks +33% synergy
Throne of Geth
33% of 3 decks +33% synergy
The Ozolith
33% of 3 decks +33% synergy
Clock of Omens
33% of 3 decks +33% synergy
Magewright's Stone
33% of 3 decks +33% synergy
Moonsilver Key
33% of 3 decks +32% synergy
Rings of Brighthearth
33% of 3 decks +32% synergy
Prized Statue
33% of 3 decks +31% synergy
Trading Post
33% of 3 decks +31% synergy
Nim Deathmantle
33% of 3 decks +29% synergy
Expedition Map
33% of 3 decks +18% synergy
Skullclamp
33% of 3 decks +12% synergy
Swiftfoot Boots
33% of 3 decks +1% synergy
Lightning Greaves
33% of 3 decks +0% synergy
Enchantments
Conspiracy
67% of 3 decks +66% synergy
Biotransference
50% of 2 decks +45% synergy
Retribution of the Ancients
33% of 3 decks +32% synergy
Dance of the Dead
33% of 3 decks +29% synergy
Agent of the Iron Throne
33% of 3 decks +28% synergy
Revel in Riches
33% of 3 decks +28% synergy
Dreadhorde Invasion
33% of 3 decks +25% synergy
Bastion of Remembrance
33% of 3 decks +19% synergy
Necropotence
33% of 3 decks +17% synergy
Animate Dead
33% of 3 decks +14% synergy
Black Market Connections
33% of 3 decks +13% synergy
Phyrexian Arena
33% of 3 decks -5% synergy
Planeswalkers
Liliana Vess
33% of 3 decks +29% synergy
Professor Onyx
33% of 3 decks +27% synergy
Utility Lands
Buried Ruin
67% of 3 decks +60% synergy
Witch's Cottage
67% of 3 decks +42% synergy
Barad-dûr
50% of 2 decks +45% synergy
Urza's Factory
33% of 3 decks +33% synergy
Mishra's Factory
33% of 3 decks +33% synergy
Hostile Hostel
33% of 3 decks +33% synergy
Treasure Vault
33% of 3 decks +32% synergy
Scavenger Grounds
33% of 3 decks +32% synergy
Blast Zone
33% of 3 decks +31% synergy
Vesuva
33% of 3 decks +30% synergy
Mikokoro, Center of the Sea
33% of 3 decks +29% synergy
Karn's Bastion
33% of 3 decks +29% synergy
Westvale Abbey
33% of 3 decks +28% synergy
Vault of Whispers
33% of 3 decks +26% synergy
Thespian's Stage
33% of 3 decks +26% synergy
Mortuary Mire
33% of 3 decks +20% synergy
Rogue's Passage
33% of 3 decks +18% synergy
War Room
33% of 3 decks +16% synergy
Takenuma, Abandoned Mire
33% of 3 decks +15% synergy
Cabal Stronghold
33% of 3 decks -7% synergy
Bojuka Bog
33% of 3 decks -14% synergy
Cabal Coffers
33% of 3 decks -24% synergy
Mana Artifacts
Sol Ring
100% of 3 decks +13% synergy
Basalt Monolith
33% of 3 decks +31% synergy
Patriar's Seal
33% of 3 decks +30% synergy
Liquimetal Torque
33% of 3 decks +29% synergy
Worn Powerstone
33% of 3 decks +29% synergy
Extraplanar Lens
33% of 3 decks +28% synergy
Thran Dynamo
33% of 3 decks +27% synergy
Chrome Mox
33% of 3 decks +27% synergy
Mana Vault
33% of 3 decks +25% synergy
Mana Crypt
33% of 3 decks +23% synergy
Jeweled Lotus
33% of 3 decks +23% synergy
Commander's Sphere
33% of 3 decks +21% synergy
Lands
Myriad Landscape
33% of 3 decks +3% synergy