Archghoul of Thraben + Mortuary + Shambling Ghast + Phyrexian Altar

Archghoul of Thraben
Mortuary
Shambling Ghast
Phyrexian Altar

Requires
Archghoul of Thraben must be on the battlefield. Mortuary must be on the battlefield. Shambling Ghast must be on the battlefield. Phyrexian Altar must be on the battlefield.
Steps
  1. Activate Phyrexian Altar by sacrificing Shambling Gast, adding .
  2. Mortuary, Shambling Ghast and Archghoul of Thraben trigger.
  3. Resolve the Mortuary trigger, putting Shambling Ghast on top of your library.
  4. Resolve the Shambling Ghast trigger, choosing either to give an opponent's creature -1/-1 until end of turn or creating a Treasure token.
  5. Resolve the Archghoul of Thraben trigger, revealing Shambling Ghast from the top of your library and putting it into your hand.
  6. Cast Shambling Ghast by paying .
  7. Repeat.
Results
Infinite colored mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite storm count. Infinite Treasure tokens. Reduce each opposing creature's toughness to zero.

Wilhelt, the Rotcleaver
0.02% of 18970 decks 4 decks
Muldrotha, the Gravetide
0.01% of 15112 decks 2 decks
Varina, Lich Queen
0.03% of 7044 decks 2 decks
Zur the Enchanter
0.02% of 11095 decks 2 decks
Grimgrin, Corpse-Born
0.05% of 2083 decks 1 decks
Elas il-Kor, Sadistic Pilgrim
0.02% of 6454 decks 1 decks
Queen Marchesa
0.01% of 12358 decks 1 decks
High Synergy Cards
Gravecrawler
92% of 13 decks +90% synergy
Rooftop Storm
82% of 11 decks +80% synergy
Carrion Feeder
85% of 13 decks +80% synergy
Liliana, Untouched by Death
77% of 13 decks +76% synergy
Necroduality
73% of 11 decks +71% synergy
Ashnod's Altar
69% of 13 decks +62% synergy
Diregraf Colossus
62% of 13 decks +60% synergy
Sidisi, Undead Vizier
62% of 13 decks +60% synergy
Mikaeus, the Unhallowed
62% of 13 decks +59% synergy
Altar of Dementia
62% of 13 decks +59% synergy
Top Cards
Poppet Stitcher
55% of 11 decks +54% synergy
Diregraf Captain
55% of 11 decks +51% synergy
Gray Merchant of Asphodel
54% of 13 decks +45% synergy
Undead Warchief
46% of 13 decks +45% synergy
Headless Rider
46% of 13 decks +45% synergy
Undead Augur
46% of 13 decks +44% synergy
Entomb
46% of 13 decks +39% synergy
Bolas's Citadel
46% of 13 decks +37% synergy
Rot Hulk
38% of 13 decks +38% synergy
Acererak the Archlich
38% of 13 decks +38% synergy
Creatures
Wayward Servant
50% of 6 decks +49% synergy
Luminous Broodmoth
50% of 6 decks +48% synergy
Midnight Reaper
38% of 13 decks +35% synergy
Viscera Seer
38% of 13 decks +29% synergy
Wilhelt, the Rotcleaver
36% of 11 decks +35% synergy
Gisa and Geralf
36% of 11 decks +34% synergy
Maggot Carrier
31% of 13 decks +31% synergy
Putrid Goblin
31% of 13 decks +30% synergy
Relentless Dead
31% of 13 decks +30% synergy
Noxious Ghoul
31% of 13 decks +30% synergy
Plague Belcher
31% of 13 decks +30% synergy
Lord of the Undead
31% of 13 decks +30% synergy
Champion of the Perished
31% of 13 decks +29% synergy
Death Baron
31% of 13 decks +29% synergy
Havengul Lich
27% of 11 decks +26% synergy
Tattered Mummy
23% of 13 decks +23% synergy
Butcher Ghoul
23% of 13 decks +23% synergy
Geralf's Messenger
23% of 13 decks +23% synergy
Vengeful Dead
23% of 13 decks +22% synergy
Tormod, the Desecrator
23% of 13 decks +22% synergy
Blood Pet
23% of 13 decks +22% synergy
Cryptbreaker
23% of 13 decks +22% synergy
Stitcher's Supplier
23% of 13 decks +20% synergy
Fleshbag Marauder
23% of 13 decks +19% synergy
Zulaport Cutthroat
23% of 13 decks +13% synergy
Blood Artist
23% of 13 decks +11% synergy
Instants
Vampiric Tutor
54% of 13 decks +36% synergy
Enlightened Tutor
50% of 6 decks +32% synergy
Swords to Plowshares
50% of 6 decks -13% synergy
Dark Ritual
38% of 13 decks +16% synergy
Mana Drain
36% of 11 decks +21% synergy
Mystical Tutor
27% of 11 decks +12% synergy
Fierce Guardianship
27% of 11 decks +9% synergy
Cyclonic Rift
27% of 11 decks -1% synergy
Counterspell
27% of 11 decks -16% synergy
Sorceries
Demonic Tutor
46% of 13 decks +24% synergy
Empty the Laboratory
36% of 11 decks +35% synergy
Diabolic Intent
31% of 13 decks +22% synergy
Reanimate
23% of 13 decks +8% synergy
Feed the Swarm
23% of 13 decks +5% synergy
Utility Artifacts
Lightning Greaves
31% of 13 decks +5% synergy
Blasting Station
23% of 13 decks +22% synergy
Aetherflux Reservoir
23% of 13 decks +19% synergy
Skullclamp
23% of 13 decks +11% synergy
Swiftfoot Boots
23% of 13 decks -5% synergy
Enchantments
Solemnity
50% of 6 decks +49% synergy
Anointed Procession
50% of 6 decks +41% synergy
Grave Pact
38% of 13 decks +34% synergy
The Meathook Massacre
38% of 13 decks +33% synergy
Rhystic Study
36% of 11 decks +8% synergy
Mystic Remora
27% of 11 decks +9% synergy
Endless Ranks of the Dead
23% of 13 decks +21% synergy
Utility Lands
Urborg, Tomb of Yawgmoth
46% of 13 decks +36% synergy
Reliquary Tower
46% of 13 decks +17% synergy
Unholy Grotto
31% of 13 decks +30% synergy
Field of the Dead
31% of 13 decks +27% synergy
Phyrexian Tower
23% of 13 decks +15% synergy
Takenuma, Abandoned Mire
23% of 13 decks +12% synergy
Mana Artifacts
Sol Ring
100% of 13 decks +16% synergy
Talisman of Hierarchy
83% of 6 decks +59% synergy
Talisman of Progress
75% of 4 decks +52% synergy
Orzhov Signet
67% of 6 decks +39% synergy
Arcane Signet
62% of 13 decks -10% synergy
Fellwar Stone
46% of 13 decks +25% synergy
Talisman of Dominance
36% of 11 decks +5% synergy
Mana Crypt
31% of 13 decks +22% synergy
Dimir Signet
27% of 11 decks -3% synergy
Thought Vessel
23% of 13 decks +6% synergy
Lands
Command Tower
77% of 13 decks +3% synergy
Sea of Clouds
75% of 4 decks +49% synergy
Raffine's Tower
75% of 4 decks +47% synergy
Hallowed Fountain
75% of 4 decks +34% synergy
Godless Shrine
67% of 6 decks +26% synergy
Darkwater Catacombs
55% of 11 decks +40% synergy
Path of Ancestry
54% of 13 decks +33% synergy
Concealed Courtyard
50% of 6 decks +44% synergy
Fetid Heath
50% of 6 decks +39% synergy
Temple of Silence
50% of 6 decks +32% synergy
Shipwreck Marsh
45% of 11 decks +27% synergy
Underground River
45% of 11 decks +26% synergy
Morphic Pool
45% of 11 decks +19% synergy
Watery Grave
45% of 11 decks +5% synergy
Marsh Flats
38% of 13 decks +27% synergy
Exotic Orchard
38% of 13 decks +3% synergy
Polluted Delta
31% of 13 decks +20% synergy
Clearwater Pathway
27% of 11 decks +17% synergy
Tainted Isle
27% of 11 decks +16% synergy
Temple of Deceit
27% of 11 decks +11% synergy
Choked Estuary
27% of 11 decks +11% synergy
Dimir Aqueduct
27% of 11 decks +10% synergy
Sunken Hollow
27% of 11 decks -7% synergy
Cavern of Souls
23% of 13 decks +16% synergy
Myriad Landscape
23% of 13 decks +3% synergy