Ghouls' Night Out + Phyrexian Altar + Headless Rider + Eternal Witness
Ghouls' Night Out
Phyrexian Altar
Headless Rider
Eternal Witness
Requires
Ghouls' Night Out must be in hand.
Phyrexian Altar must be on the battlefield.
Headless Rider must be on the battlefield.
Eternal Witness must be in the graveyard.
At least two of your opponents have a creature card in their graveyard.
Mana needed: 
Steps
- Cast Ghouls' Night Out by paying , returning Eternal Witness from your graveyard to the battlefield, and at least two other creatures from your opponents' graveyards to the battlefield under your control.
- When Eternal Witness enters the battlefield, it triggers, returning Ghouls' Night Out from your graveyard to your hand.
- Activate Phyrexian Altar three times by sacrificing Eternal Witness and the two creatures your opponents own, adding
. - When the three creatures die, Headless Rider triggers three times, creating three 2/2 Zombie creature tokens.
- Activate Phyrexian Altar twice by sacrificing two Zombies, adding
. - Repeat.
Results
Infinite colored mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite magecraft triggers. Infinite sacrifice triggers. Infinite storm count.
Henry Wu, InGen Geneticist
0.21% of 947 decks
2 decks
Savra, Queen of the Golgari
0.04% of 2793 decks
1 decks
Creatures
Skull Skaab
100% of 2 decks
+100% synergy
Eloise, Nephalia Sleuth
100% of 2 decks
+99% synergy
Overcharged Amalgam
100% of 2 decks
+99% synergy
Zimone and Dina
100% of 2 decks
+99% synergy
Kitesail Larcenist
100% of 1 decks
+98% synergy
Wilhelt, the Rotcleaver
100% of 2 decks
+98% synergy
Diregraf Colossus
100% of 3 decks
+98% synergy
Undead Augur
100% of 3 decks
+98% synergy
Gisa and Geralf
100% of 2 decks
+98% synergy
Gravecrawler
100% of 3 decks
+97% synergy
Diregraf Captain
100% of 2 decks
+96% synergy
Warren Soultrader
100% of 1 decks
+93% synergy
Pitiless Plunderer
100% of 3 decks
+92% synergy
Accursed Marauder
100% of 1 decks
+91% synergy
Zulaport Cutthroat
100% of 3 decks
+90% synergy
Liliana's Devotee
67% of 3 decks
+66% synergy
Razorlash Transmogrant
67% of 3 decks
+66% synergy
Fell Stinger
67% of 3 decks
+66% synergy
Plague Belcher
67% of 3 decks
+66% synergy
Ghoulcaller Gisa
67% of 3 decks
+65% synergy
Death Baron
67% of 3 decks
+64% synergy
Meren of Clan Nel Toth
67% of 3 decks
+64% synergy
Timeless Witness
67% of 3 decks
+64% synergy
Grim Haruspex
67% of 3 decks
+63% synergy
Plaguecrafter
67% of 3 decks
+62% synergy
Syr Konrad, the Grim
67% of 3 decks
+58% synergy
Gray Merchant of Asphodel
67% of 3 decks
+58% synergy
Stitched Assistant
50% of 2 decks
+50% synergy
Geralf, Visionary Stitcher
50% of 2 decks
+49% synergy
Bladestitched Skaab
50% of 2 decks
+49% synergy
Cleaver Skaab
50% of 2 decks
+49% synergy
Master of Death
50% of 2 decks
+49% synergy
Aether Channeler
50% of 2 decks
+48% synergy
Ojer Kaslem, Deepest Growth
50% of 2 decks
+47% synergy
Young Necromancer
33% of 3 decks
+33% synergy
Egon, God of Death
33% of 3 decks
+33% synergy
Diligent Farmhand
33% of 3 decks
+33% synergy
Butcher Ghoul
33% of 3 decks
+33% synergy
Xathrid Necromancer
33% of 3 decks
+33% synergy
Geralf's Messenger
33% of 3 decks
+33% synergy
Corpse Connoisseur
33% of 3 decks
+33% synergy
Archghoul of Thraben
33% of 3 decks
+33% synergy
Ravenous Rotbelly
33% of 3 decks
+33% synergy
Relentless Dead
33% of 3 decks
+33% synergy
Vengeful Dead
33% of 3 decks
+33% synergy
Splinterfright
33% of 3 decks
+32% synergy
Whisper, Blood Liturgist
33% of 3 decks
+32% synergy
Liliana, Heretical Healer
33% of 3 decks
+32% synergy
Undead Butler
33% of 3 decks
+32% synergy
Tomb Tyrant
33% of 3 decks
+32% synergy
Instants
Assassin's Trophy
100% of 3 decks
+70% synergy
Beast Within
67% of 3 decks
+28% synergy
Jwari Disruption
50% of 2 decks
+49% synergy
An Offer You Can't Refuse
50% of 2 decks
+29% synergy
Negate
50% of 2 decks
+27% synergy
Rotten Reunion
33% of 3 decks
+33% synergy
Pile On
33% of 3 decks
+32% synergy
Lethal Scheme
33% of 3 decks
+32% synergy
Hagra Mauling
33% of 3 decks
+31% synergy
Mortality Spear
33% of 3 decks
+30% synergy
Go for the Throat
33% of 3 decks
+26% synergy
Entomb
33% of 3 decks
+26% synergy
Infernal Grasp
33% of 3 decks
+26% synergy
Malakir Rebirth
33% of 3 decks
+25% synergy
Nature's Claim
33% of 3 decks
+24% synergy
Village Rites
33% of 3 decks
+23% synergy
Dark Ritual
33% of 3 decks
+11% synergy
Sorceries
Lich-Knights' Conquest
67% of 3 decks
+64% synergy
Dread Return
67% of 3 decks
+61% synergy
Diabolic Intent
67% of 3 decks
+58% synergy
Toxic Deluge
67% of 3 decks
+49% synergy
Three Visits
67% of 3 decks
+42% synergy
Nature's Lore
67% of 3 decks
+35% synergy
Farseek
67% of 3 decks
+32% synergy
Lórien Revealed
50% of 2 decks
+46% synergy
Squirming Emergence
50% of 2 decks
+46% synergy
No One Left Behind
33% of 3 decks
+33% synergy
Ghoulcaller's Harvest
33% of 3 decks
+33% synergy
Zof Consumption
33% of 3 decks
+33% synergy
Zombify
33% of 3 decks
+33% synergy
Necromantic Selection
33% of 3 decks
+32% synergy
Incarnation Technique
33% of 3 decks
+32% synergy
Life // Death
33% of 3 decks
+32% synergy
Unearth
33% of 3 decks
+30% synergy
Agadeem's Awakening
33% of 3 decks
+30% synergy
Buried Alive
33% of 3 decks
+28% synergy
Diabolic Tutor
33% of 3 decks
+27% synergy
Rise of the Witch-king
33% of 3 decks
+27% synergy
Victimize
33% of 3 decks
+22% synergy
Reanimate
33% of 3 decks
+18% synergy
Feed the Swarm
33% of 3 decks
+15% synergy
Rampant Growth
33% of 3 decks
-1% synergy
Utility Artifacts
Ghost Lantern
33% of 3 decks
+33% synergy
Bontu's Monument
33% of 3 decks
+31% synergy
Altar of Dementia
33% of 3 decks
+31% synergy
Ashnod's Altar
33% of 3 decks
+26% synergy
Enchantments
Insidious Roots
100% of 1 decks
+91% synergy
Liliana's Mastery
67% of 3 decks
+66% synergy
Bastion of Remembrance
67% of 3 decks
+60% synergy
Necroduality
50% of 2 decks
+49% synergy
Rooftop Storm
50% of 2 decks
+48% synergy
Crop Sigil
33% of 3 decks
+33% synergy
Ghoulish Procession
33% of 3 decks
+33% synergy
Crawling Sensation
33% of 3 decks
+32% synergy
Crawling Infestation
33% of 3 decks
+32% synergy
Open the Graves
33% of 3 decks
+32% synergy
The Meathook Massacre
33% of 3 decks
+28% synergy
Animate Dead
33% of 3 decks
+24% synergy
Phyrexian Arena
33% of 3 decks
+19% synergy
Battles
Invasion of Amonkhet
50% of 2 decks
+48% synergy
Utility Lands
Restless Reef
100% of 1 decks
+96% synergy
Crypt of Agadeem
33% of 3 decks
+32% synergy
High Market
33% of 3 decks
+30% synergy
Field of the Dead
33% of 3 decks
+30% synergy
Grim Backwoods
33% of 3 decks
+29% synergy
Mortuary Mire
33% of 3 decks
+28% synergy
Buried Ruin
33% of 3 decks
+28% synergy
Yavimaya, Cradle of Growth
33% of 3 decks
+24% synergy
Urborg, Tomb of Yawgmoth
33% of 3 decks
+23% synergy
Takenuma, Abandoned Mire
33% of 3 decks
+23% synergy
Boseiju, Who Endures
33% of 3 decks
+14% synergy
Reliquary Tower
33% of 3 decks
+4% synergy
Bojuka Bog
33% of 3 decks
+3% synergy
Mana Artifacts
Sol Ring
100% of 3 decks
+16% synergy
Thought Vessel
33% of 3 decks
+17% synergy
Mind Stone
33% of 3 decks
+16% synergy
Arcane Signet
33% of 3 decks
-39% synergy
Lands
Viridescent Bog
100% of 1 decks
+89% synergy
Undercity Sewers
100% of 1 decks
+86% synergy
Hedge Maze
100% of 1 decks
+86% synergy
Dreamroot Cascade
100% of 2 decks
+81% synergy
Shipwreck Marsh
100% of 2 decks
+81% synergy
Path of Ancestry
100% of 3 decks
+79% synergy
Zagoth Triome
100% of 2 decks
+69% synergy
Exotic Orchard
100% of 3 decks
+64% synergy
Watery Grave
100% of 2 decks
+59% synergy
Breeding Pool
100% of 2 decks
+59% synergy
Command Tower
100% of 3 decks
+26% synergy
Tainted Wood
67% of 3 decks
+54% synergy
Deathcap Glade
67% of 3 decks
+53% synergy
Llanowar Wastes
67% of 3 decks
+41% synergy
Overgrown Tomb
67% of 3 decks
+24% synergy
Fetid Pools
50% of 2 decks
+45% synergy
Tangled Islet
50% of 2 decks
+42% synergy
Tainted Isle
50% of 2 decks
+39% synergy
Temple of Deceit
50% of 2 decks
+34% synergy
Underground Mortuary
50% of 2 decks
+33% synergy
Dimir Aqueduct
50% of 2 decks
+33% synergy
Underground River
50% of 2 decks
+31% synergy
Morphic Pool
50% of 2 decks
+24% synergy
Yavimaya Coast
50% of 2 decks
+24% synergy
Opulent Palace
50% of 2 decks
+23% synergy
Rejuvenating Springs
50% of 2 decks
+21% synergy
Sunken Hollow
50% of 2 decks
+15% synergy
Unclaimed Territory
33% of 3 decks
+28% synergy
Haunted Mire
33% of 3 decks
+25% synergy
Jungle Hollow
33% of 3 decks
+25% synergy
Polluted Delta
33% of 3 decks
+22% synergy
Verdant Catacombs
33% of 3 decks
+22% synergy
Necroblossom Snarl
33% of 3 decks
+22% synergy
Misty Rainforest
33% of 3 decks
+22% synergy
Temple of Malady
33% of 3 decks
+17% synergy
Golgari Rot Farm
33% of 3 decks
+16% synergy
Myriad Landscape
33% of 3 decks
+14% synergy
Undergrowth Stadium
33% of 3 decks
+7% synergy