Fain, the Broker + Thornbite Staff + Maskwood Nexus + Xathrid Necromancer

Fain, the Broker
Thornbite Staff
Maskwood Nexus
Xathrid Necromancer

Requires
Fain, the Broker must be on the battlefield. Thornbite Staff must be on the battlefield. Maskwood Nexus must be on the battlefield. Xathrid Necromancer must be on the battlefield. You control at least one additional creature. Thornbite Staff attached to Fain. Fain does not have summoning sickness.
Steps
  1. Activate Fain's first ability by tapping it and sacrificing a creature.
  2. The creature dies, triggering Xathrid Necromancer and Fain.
  3. Resolve the Xathrid Necromancer trigger, creating a 2/2 Zombie creature token.
  4. Resolve the Fain trigger, untapping it.
  5. Resolve the Fain ability from step 1, putting two +1/+1 counters on a creature you control.
  6. Repeat.
Results
Infinite +1/+1 counters. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Shadowheart, Dark Justiciar // Haunted One
0.47% of 427 decks 2 decks
Fain, the Broker
0.72% of 279 decks 2 decks
Volo, Itinerant Scholar // Haunted One
0.36% of 276 decks 1 decks
Ellyn Harbreeze, Busybody // Haunted One
1.37% of 73 decks 1 decks
High Synergy Cards
Thousand-Year Elixir
100% of 6 decks +98% synergy
Ashnod's Altar
100% of 6 decks +92% synergy
Retribution of the Ancients
67% of 6 decks +66% synergy
Pitiless Plunderer
67% of 6 decks +59% synergy
Victimize
67% of 6 decks +55% synergy
Top Cards
Patriar's Seal
80% of 5 decks +78% synergy
Creatures
Vedalken Anatomist
100% of 1 decks +100% synergy
Novijen Sages
100% of 1 decks +100% synergy
Experimental Aviator
100% of 1 decks +100% synergy
Keeper of Keys
100% of 1 decks +100% synergy
Tempest Caller
100% of 1 decks +100% synergy
Master of Waves
100% of 1 decks +100% synergy
Vedalken Aethermage
100% of 1 decks +99% synergy
Cemetery Protector
100% of 1 decks +99% synergy
Soul Diviner
100% of 1 decks +99% synergy
Fatestitcher
100% of 1 decks +99% synergy
Hopeful Initiate
100% of 1 decks +99% synergy
Fleshtaker
100% of 1 decks +99% synergy
Reverent Hoplite
100% of 1 decks +99% synergy
Sister Hospitaller
100% of 1 decks +99% synergy
Abdel Adrian, Gorion's Ward
100% of 1 decks +99% synergy
Village Bell-Ringer
100% of 1 decks +99% synergy
Scholar of New Horizons
100% of 1 decks +99% synergy
Vizier of Tumbling Sands
100% of 1 decks +99% synergy
Jirina, Dauntless General
100% of 1 decks +98% synergy
Havengul Lich
100% of 1 decks +98% synergy
Coppercoat Vanguard
100% of 1 decks +98% synergy
Company Commander
100% of 1 decks +98% synergy
Whirler Rogue
100% of 1 decks +98% synergy
Faerie Seer
100% of 1 decks +98% synergy
Trophy Mage
100% of 1 decks +98% synergy
Luminous Broodmoth
100% of 1 decks +98% synergy
Tribute Mage
100% of 1 decks +98% synergy
Glen Elendra Archmage
100% of 1 decks +98% synergy
Priest of Fell Rites
100% of 1 decks +98% synergy
General's Enforcer
100% of 1 decks +97% synergy
Thalisse, Reverent Medium
100% of 1 decks +97% synergy
Commissar Severina Raine
100% of 1 decks +97% synergy
Cathar Commando
100% of 1 decks +97% synergy
Laboratory Maniac
100% of 1 decks +95% synergy
Teysa Karlov
100% of 1 decks +95% synergy
Soul Warden
100% of 1 decks +95% synergy
Adeline, Resplendent Cathar
100% of 1 decks +95% synergy
Knight of the White Orchid
100% of 1 decks +94% synergy
Rotlung Reanimator
50% of 6 decks +50% synergy
Jerren, Corrupted Bishop
50% of 6 decks +50% synergy
Yawgmoth, Thran Physician
50% of 6 decks +46% synergy
Grim Haruspex
50% of 6 decks +46% synergy
Syr Konrad, the Grim
50% of 6 decks +41% synergy
Mirkwood Bats
50% of 2 decks +38% synergy
Shadow-Rite Priest
40% of 5 decks +40% synergy
Forge, Neverwinter Charlatan
33% of 3 decks +33% synergy
Crystalline Crawler
33% of 6 decks +33% synergy
Taborax, Hope's Demise
33% of 6 decks +33% synergy
Skemfar Shadowsage
33% of 6 decks +33% synergy
Doomed Necromancer
33% of 6 decks +32% synergy
Instants
Call the Coppercoats
100% of 1 decks +97% synergy
Clever Concealment
100% of 1 decks +95% synergy
Rapid Hybridization
100% of 1 decks +91% synergy
Enlightened Tutor
100% of 1 decks +82% synergy
Anguished Unmaking
100% of 1 decks +76% synergy
Generous Gift
100% of 1 decks +74% synergy
Cyclonic Rift
100% of 1 decks +72% synergy
Swords to Plowshares
100% of 1 decks +37% synergy
Deadly Derision
33% of 3 decks +33% synergy
Defile
33% of 6 decks +30% synergy
Tragic Slip
33% of 6 decks +30% synergy
Village Rites
33% of 6 decks +23% synergy
Deadly Rollick
33% of 6 decks +23% synergy
Deadly Dispute
33% of 6 decks +22% synergy
Vampiric Tutor
33% of 6 decks +15% synergy
Overwhelming Remorse
25% of 4 decks +24% synergy
Cut Down
20% of 5 decks +19% synergy
Insidious Dreams
17% of 6 decks +16% synergy
Drag to the Underworld
17% of 6 decks +16% synergy
Necrologia
17% of 6 decks +16% synergy
Malicious Affliction
17% of 6 decks +16% synergy
Body Count
17% of 6 decks +16% synergy
Price of Fame
17% of 6 decks +16% synergy
Fake Your Own Death
17% of 6 decks +15% synergy
Doom Blade
17% of 6 decks +15% synergy
Feign Death
17% of 6 decks +15% synergy
Baleful Mastery
17% of 6 decks +14% synergy
Plumb the Forbidden
17% of 6 decks +13% synergy
Go for the Throat
17% of 6 decks +10% synergy
Infernal Grasp
17% of 6 decks +9% synergy
Malakir Rebirth
17% of 6 decks +8% synergy
Sorceries
Mass Appeal
100% of 1 decks +99% synergy
Visions of Glory
100% of 1 decks +99% synergy
Increasing Devotion
100% of 1 decks +98% synergy
Ascend from Avernus
100% of 1 decks +98% synergy
Damn
100% of 1 decks +83% synergy
Exsanguinate
50% of 6 decks +44% synergy
Reanimate
50% of 6 decks +34% synergy
Feed the Swarm
50% of 6 decks +32% synergy
Demonic Tutor
50% of 6 decks +28% synergy
Mutilate
33% of 6 decks +31% synergy
Agadeem's Awakening
33% of 6 decks +30% synergy
Dread Return
33% of 6 decks +28% synergy
Diabolic Intent
33% of 6 decks +25% synergy
Toxic Deluge
33% of 6 decks +16% synergy
Blood Money
20% of 5 decks +18% synergy
Diabolic Revelation
17% of 6 decks +16% synergy
Cut of the Profits
17% of 6 decks +16% synergy
Dead of Winter
17% of 6 decks +16% synergy
Dark Petition
17% of 6 decks +16% synergy
Beseech the Queen
17% of 6 decks +16% synergy
Beacon of Unrest
17% of 6 decks +16% synergy
Chain of Smog
17% of 6 decks +15% synergy
Black Sun's Zenith
17% of 6 decks +15% synergy
Dark Deal
17% of 6 decks +14% synergy
Patriarch's Bidding
17% of 6 decks +13% synergy
Kindred Dominance
17% of 6 decks +13% synergy
Grim Tutor
17% of 6 decks +12% synergy
Torment of Hailfire
17% of 6 decks +12% synergy
Imperial Seal
17% of 6 decks +11% synergy
Diabolic Tutor
17% of 6 decks +10% synergy
Damnation
17% of 6 decks +9% synergy
Sign in Blood
17% of 6 decks +7% synergy
Utility Artifacts
Agatha's Soul Cauldron
100% of 1 decks +98% synergy
Halo Fountain
100% of 1 decks +97% synergy
Cauldron of Souls
50% of 6 decks +49% synergy
Sting, the Glinting Dagger
50% of 2 decks +48% synergy
Phyrexian Altar
50% of 6 decks +46% synergy
Skullclamp
50% of 6 decks +38% synergy
Pyre of Heroes
33% of 6 decks +33% synergy
Magewright's Stone
33% of 6 decks +33% synergy
Staff of Domination
33% of 6 decks +32% synergy
Bontu's Monument
33% of 6 decks +31% synergy
Vat of Rebirth
33% of 3 decks +31% synergy
Jet Medallion
33% of 6 decks +31% synergy
Transmogrant's Crown
25% of 4 decks +24% synergy
Prized Statue
20% of 5 decks +19% synergy
Cryptic Gateway
17% of 6 decks +16% synergy
Dragon Throne of Tarkir
17% of 6 decks +16% synergy
Sword of the Paruns
17% of 6 decks +16% synergy
Animation Module
17% of 6 decks +16% synergy
Power Conduit
17% of 6 decks +16% synergy
Throne of Geth
17% of 6 decks +16% synergy
Nim Deathmantle
17% of 6 decks +16% synergy
Mycosynth Lattice
17% of 6 decks +16% synergy
Umbral Mantle
17% of 6 decks +16% synergy
Clock of Omens
17% of 6 decks +16% synergy
Krark-Clan Ironworks
17% of 6 decks +16% synergy
Trading Post
17% of 6 decks +15% synergy
Moonsilver Key
17% of 6 decks +15% synergy
Rings of Brighthearth
17% of 6 decks +15% synergy
Door of Destinies
17% of 6 decks +15% synergy
Urza's Incubator
17% of 6 decks +14% synergy
Expedition Map
17% of 6 decks +13% synergy
Whip of Erebos
17% of 6 decks +13% synergy
The Ozolith
17% of 6 decks +13% synergy
Vanquisher's Banner
17% of 6 decks +13% synergy
Wishclaw Talisman
17% of 6 decks +11% synergy
Swiftfoot Boots
17% of 6 decks -11% synergy
Enchantments
Delaying Shield
100% of 1 decks +100% synergy
Phyrexian Unlife
100% of 1 decks +100% synergy
Solemnity
100% of 1 decks +99% synergy
Arcane Adaptation
100% of 1 decks +99% synergy
Intruder Alarm
100% of 1 decks +98% synergy
Freed from the Real
100% of 1 decks +98% synergy
Etchings of the Chosen
100% of 1 decks +97% synergy
Reflections of Littjara
100% of 1 decks +95% synergy
Kindred Discovery
100% of 1 decks +93% synergy
Anointed Procession
100% of 1 decks +91% synergy
Black Market Connections
40% of 5 decks +29% synergy
Conspiracy
33% of 6 decks +33% synergy
Dictate of Erebos
33% of 6 decks +29% synergy
The Meathook Massacre
33% of 6 decks +28% synergy
Biotransference
25% of 4 decks +24% synergy
Agent of the Iron Throne
20% of 5 decks +17% synergy
Dance of the Dead
17% of 6 decks +15% synergy
Dreadhorde Invasion
17% of 6 decks +14% synergy
Revel in Riches
17% of 6 decks +13% synergy
Grave Pact
17% of 6 decks +12% synergy
Black Market
17% of 6 decks +12% synergy
Necropotence
17% of 6 decks +11% synergy
Bastion of Remembrance
17% of 6 decks +10% synergy
Animate Dead
17% of 6 decks +7% synergy
Phyrexian Arena
17% of 6 decks +2% synergy
Planeswalkers
Liliana Vess
17% of 6 decks +16% synergy
Lolth, Spider Queen
17% of 6 decks +15% synergy
Tevesh Szat, Doom of Fools
17% of 6 decks +15% synergy
Professor Onyx
17% of 6 decks +15% synergy
Liliana, Dreadhorde General
17% of 6 decks +13% synergy
Utility Lands
Windbrisk Heights
100% of 1 decks +95% synergy
Castle Ardenvale
100% of 1 decks +95% synergy
Hall of Heliod's Generosity
100% of 1 decks +93% synergy
Vault of the Archangel
100% of 1 decks +89% synergy
Witch's Cottage
50% of 6 decks +46% synergy
War Room
50% of 6 decks +44% synergy
Cabal Coffers
50% of 6 decks +39% synergy
Bojuka Bog
50% of 6 decks +20% synergy
Westvale Abbey
33% of 6 decks +31% synergy
Cabal Stronghold
33% of 6 decks +30% synergy
Nykthos, Shrine to Nyx
33% of 6 decks +28% synergy
Phyrexian Tower
33% of 6 decks +25% synergy
Takenuma, Abandoned Mire
33% of 6 decks +23% synergy
Reliquary Tower
33% of 6 decks +4% synergy
Dark Depths
17% of 6 decks +16% synergy
Vesuva
17% of 6 decks +15% synergy
Volrath's Stronghold
17% of 6 decks +15% synergy
Field of Ruin
17% of 6 decks +14% synergy
Ghost Quarter
17% of 6 decks +14% synergy
Treasure Vault
17% of 6 decks +14% synergy
Thespian's Stage
17% of 6 decks +14% synergy
High Market
17% of 6 decks +14% synergy
Karn's Bastion
17% of 6 decks +12% synergy
Buried Ruin
17% of 6 decks +11% synergy
Castle Locthwain
17% of 6 decks +11% synergy
Mana Artifacts
Talisman of Hierarchy
100% of 1 decks +75% synergy
Dimir Signet
100% of 1 decks +70% synergy
Talisman of Dominance
100% of 1 decks +69% synergy
Sol Ring
83% of 6 decks -1% synergy
Arcane Signet
33% of 6 decks -39% synergy
Paradise Mantle
17% of 6 decks +16% synergy
Extraplanar Lens
17% of 6 decks +16% synergy
Crowded Crypt
17% of 6 decks +15% synergy
Springleaf Drum
17% of 6 decks +15% synergy
Basalt Monolith
17% of 6 decks +14% synergy
Charcoal Diamond
17% of 6 decks +11% synergy
Jeweled Lotus
17% of 6 decks +11% synergy
Chrome Mox
17% of 6 decks +10% synergy
Mana Vault
17% of 6 decks +10% synergy
Mana Crypt
17% of 6 decks +8% synergy
Commander's Sphere
17% of 6 decks +1% synergy
Fellwar Stone
17% of 6 decks -4% synergy
Lands
Dimir Aqueduct
100% of 1 decks +83% synergy
Temple of Silence
100% of 1 decks +82% synergy
Drowned Catacomb
100% of 1 decks +75% synergy
Isolated Chapel
100% of 1 decks +73% synergy
Caves of Koilos
100% of 1 decks +72% synergy
Demolition Field
25% of 4 decks +22% synergy
Myriad Landscape
17% of 6 decks -3% synergy
Path of Ancestry
17% of 6 decks -4% synergy
Exotic Orchard
17% of 6 decks -19% synergy
Command Tower
17% of 6 decks -57% synergy