Witch Engine + Corpse Dance + Ashnod's Altar

Witch Engine
Corpse Dance
Ashnod's Altar

Requires
Witch Engine must be on the battlefield. Corpse Dance must be in hand. Ashnod's Altar must be on the battlefield.
Steps
  1. Activate Witch Engine by tapping it, targeting any opponent.
  2. Holding priority, activate Ashnod's Altar by sacrificing Witch Engine, adding .
  3. Resolve the Witch Engine ability, adding and not giving control of Witch Engine to an opponent due to it no longer being on the battlefield.
  4. Cast Corpse Dance with buyback by paying 4, returning Witch Engine from your graveyard to the battlefield with haste, and returning Corpse Dance to your hand.
  5. Repeat.
Results
Infinite black mana. Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite magecraft triggers. Infinite sacrifice triggers. Infinite storm count.

Armix, Filigree Thrasher // Tevesh Szat, Doom of Fools
3.12% of 32 decks 1 decks
Maga, Traitor to Mortals
0.52% of 191 decks 1 decks
Judith, the Scourge Diva
0.13% of 798 decks 1 decks
Creatures
Lyzolda, the Blood Witch
100% of 1 decks +100% synergy
Hissing Iguanar
100% of 1 decks +100% synergy
Akul the Unrepentant
100% of 1 decks +100% synergy
Anax, Hardened in the Forge
100% of 1 decks +100% synergy
Bladewing, Deathless Tyrant
100% of 1 decks +100% synergy
Garna, Bloodfist of Keld
100% of 1 decks +99% synergy
Rakdos, the Muscle
100% of 1 decks +99% synergy
Juri, Master of the Revue
100% of 1 decks +99% synergy
Mahadi, Emporium Master
100% of 1 decks +98% synergy
Mayhem Devil
100% of 1 decks +98% synergy
Warren Soultrader
100% of 1 decks +96% synergy
Illuminor Szeras
67% of 3 decks +66% synergy
Ruthless Technomancer
67% of 3 decks +66% synergy
Carrion Feeder
67% of 3 decks +64% synergy
Viscera Seer
67% of 3 decks +62% synergy
Skeleton Crew
50% of 2 decks +49% synergy
Forsaken Miner
50% of 2 decks +49% synergy
Scampire
33% of 3 decks +33% synergy
Initiates of the Ebon Hand
33% of 3 decks +33% synergy
Blood Vassal
33% of 3 decks +33% synergy
Xiahou Dun, the One-Eyed
33% of 3 decks +33% synergy
Coretapper
33% of 3 decks +33% synergy
Tenacious Dead
33% of 3 decks +33% synergy
Blood Speaker
33% of 3 decks +33% synergy
Cathodion
33% of 3 decks +33% synergy
Basal Sliver
33% of 3 decks +33% synergy
Priest of Gix
33% of 3 decks +33% synergy
Bloodflow Connoisseur
33% of 3 decks +33% synergy
Scarecrone
33% of 3 decks +33% synergy
Activated Sleeper
33% of 3 decks +33% synergy
Soldevi Adnate
33% of 3 decks +33% synergy
Oathsworn Vampire
33% of 3 decks +33% synergy
Persistent Specimen
33% of 3 decks +33% synergy
Cavalier of Night
33% of 3 decks +33% synergy
Magus of the Coffers
33% of 3 decks +33% synergy
Cult Conscript
33% of 3 decks +33% synergy
Skirge Familiar
33% of 3 decks +33% synergy
Apprentice Necromancer
33% of 3 decks +33% synergy
Endrek Sahr, Master Breeder
33% of 3 decks +33% synergy
Bloodsoaked Champion
33% of 3 decks +33% synergy
Sifter of Skulls
33% of 3 decks +33% synergy
Blood Pet
33% of 3 decks +33% synergy
Phyrexian Delver
33% of 3 decks +33% synergy
Vindictive Vampire
33% of 3 decks +33% synergy
Bone Miser
33% of 3 decks +33% synergy
Dark Confidant
33% of 3 decks +32% synergy
Sidisi, Undead Vizier
33% of 3 decks +32% synergy
Universal Automaton
33% of 3 decks +32% synergy
Razaketh, the Foulblooded
33% of 3 decks +32% synergy
Priest of Forgotten Gods
33% of 3 decks +32% synergy
Instants
Rakdos Charm
100% of 1 decks +97% synergy
Bedevil
100% of 1 decks +97% synergy
Abrade
100% of 1 decks +94% synergy
Sacrifice
67% of 3 decks +66% synergy
Culling the Weak
67% of 3 decks +65% synergy
Cabal Ritual
67% of 3 decks +64% synergy
Entomb
67% of 3 decks +63% synergy
Vampiric Tutor
67% of 3 decks +57% synergy
Dark Ritual
67% of 3 decks +56% synergy
Darkblast
33% of 3 decks +33% synergy
Shallow Grave
33% of 3 decks +33% synergy
Saw in Half
33% of 3 decks +32% synergy
Go for the Throat
33% of 3 decks +30% synergy
Village Rites
33% of 3 decks +28% synergy
Sorceries
Molten Collapse
100% of 1 decks +100% synergy
Peer into the Abyss
67% of 3 decks +65% synergy
Diabolic Intent
67% of 3 decks +62% synergy
Victimize
67% of 3 decks +61% synergy
Demonic Tutor
67% of 3 decks +55% synergy
Lively Dirge
50% of 2 decks +49% synergy
Nightmare Void
33% of 3 decks +33% synergy
Spark Harvest
33% of 3 decks +33% synergy
Exhume
33% of 3 decks +33% synergy
Yawgmoth's Will
33% of 3 decks +33% synergy
Bubbling Muck
33% of 3 decks +33% synergy
Black Sun's Zenith
33% of 3 decks +33% synergy
Scheming Symmetry
33% of 3 decks +32% synergy
Unmarked Grave
33% of 3 decks +32% synergy
Unearth
33% of 3 decks +32% synergy
Grim Tutor
33% of 3 decks +31% synergy
Buried Alive
33% of 3 decks +31% synergy
Imperial Seal
33% of 3 decks +30% synergy
Diabolic Tutor
33% of 3 decks +30% synergy
Read the Bones
33% of 3 decks +29% synergy
Reanimate
33% of 3 decks +26% synergy
Toxic Deluge
33% of 3 decks +25% synergy
Utility Artifacts
Altar of Dementia
67% of 3 decks +64% synergy
Bolas's Citadel
67% of 3 decks +62% synergy
Skullclamp
67% of 3 decks +54% synergy
Paleontologist's Pick-Axe
50% of 2 decks +50% synergy
Skeleton Shard
33% of 3 decks +33% synergy
Embalmer's Tools
33% of 3 decks +33% synergy
Magistrate's Scepter
33% of 3 decks +33% synergy
Sword of the Paruns
33% of 3 decks +33% synergy
Desecrated Tomb
33% of 3 decks +33% synergy
Blasting Station
33% of 3 decks +33% synergy
Witch's Oven
33% of 3 decks +33% synergy
Nim Deathmantle
33% of 3 decks +33% synergy
Thornbite Staff
33% of 3 decks +33% synergy
Voltaic Key
33% of 3 decks +32% synergy
Mimic Vat
33% of 3 decks +32% synergy
Staff of Domination
33% of 3 decks +31% synergy
Jet Medallion
33% of 3 decks +31% synergy
Wishclaw Talisman
33% of 3 decks +31% synergy
Maskwood Nexus
33% of 3 decks +30% synergy
Aetherflux Reservoir
33% of 3 decks +29% synergy
Phyrexian Altar
33% of 3 decks +29% synergy
Sensei's Divining Top
33% of 3 decks +28% synergy
The One Ring
33% of 3 decks +24% synergy
Swiftfoot Boots
33% of 3 decks +5% synergy
Enchantments
Rakdos Joins Up
100% of 1 decks +99% synergy
Aggravated Assault
100% of 1 decks +98% synergy
Goblin Bombardment
100% of 1 decks +97% synergy
Chthonian Nightmare
50% of 2 decks +48% synergy
Blood Funnel
33% of 3 decks +33% synergy
Conspiracy
33% of 3 decks +33% synergy
Retribution of the Ancients
33% of 3 decks +33% synergy
Gift of Doom
33% of 3 decks +33% synergy
Cultist of the Absolute
33% of 3 decks +33% synergy
Dance of the Dead
33% of 3 decks +32% synergy
Necromancy
33% of 3 decks +32% synergy
Bloodchief Ascension
33% of 3 decks +32% synergy
Phyrexian Reclamation
33% of 3 decks +31% synergy
Necropotence
33% of 3 decks +31% synergy
Bastion of Remembrance
33% of 3 decks +30% synergy
Animate Dead
33% of 3 decks +29% synergy
Planeswalkers
Tibalt, Rakish Instigator
100% of 1 decks +100% synergy
Chandra, Acolyte of Flame
100% of 1 decks +100% synergy
Liliana, Dreadhorde General
33% of 3 decks +31% synergy
Utility Lands
Sokenzan, Crucible of Defiance
100% of 1 decks +97% synergy
Phyrexian Tower
67% of 3 decks +62% synergy
Lake of the Dead
33% of 3 decks +33% synergy
City of Traitors
33% of 3 decks +33% synergy
Crystal Vein
33% of 3 decks +32% synergy
Barad-dûr
33% of 3 decks +32% synergy
Homeward Path
33% of 3 decks +32% synergy
Mikokoro, Center of the Sea
33% of 3 decks +31% synergy
Witch's Cottage
33% of 3 decks +31% synergy
Barren Moor
33% of 3 decks +31% synergy
Vault of Whispers
33% of 3 decks +31% synergy
Emergence Zone
33% of 3 decks +31% synergy
Treasure Vault
33% of 3 decks +31% synergy
Mortuary Mire
33% of 3 decks +31% synergy
Ghost Quarter
33% of 3 decks +31% synergy
Castle Locthwain
33% of 3 decks +30% synergy
Geier Reach Sanitarium
33% of 3 decks +30% synergy
Inventors' Fair
33% of 3 decks +29% synergy
Darksteel Citadel
33% of 3 decks +29% synergy
Takenuma, Abandoned Mire
33% of 3 decks +28% synergy
Cabal Coffers
33% of 3 decks +28% synergy
Urza's Saga
33% of 3 decks +26% synergy
Urborg, Tomb of Yawgmoth
33% of 3 decks +23% synergy
Ancient Tomb
33% of 3 decks +23% synergy
Bojuka Bog
33% of 3 decks +18% synergy
Reliquary Tower
33% of 3 decks +4% synergy
Mana Artifacts
Talisman of Indulgence
100% of 1 decks +94% synergy
Sol Ring
100% of 3 decks +16% synergy
Lotus Petal
67% of 3 decks +60% synergy
Arcane Signet
67% of 3 decks -5% synergy
Lion's Eye Diamond
33% of 3 decks +32% synergy
Grim Monolith
33% of 3 decks +31% synergy
Mox Amber
33% of 3 decks +29% synergy
Mox Diamond
33% of 3 decks +29% synergy
Mox Opal
33% of 3 decks +29% synergy
Mana Vault
33% of 3 decks +27% synergy
Chrome Mox
33% of 3 decks +27% synergy
Jeweled Lotus
33% of 3 decks +26% synergy
Mana Crypt
33% of 3 decks +22% synergy
Commander's Sphere
33% of 3 decks +17% synergy
Mind Stone
33% of 3 decks +16% synergy
Fellwar Stone
33% of 3 decks +12% synergy
Lands
Rakdos Guildgate
100% of 1 decks +99% synergy
Canyon Slough
100% of 1 decks +99% synergy
Bloodfell Caves
100% of 1 decks +98% synergy
Graven Cairns
100% of 1 decks +98% synergy
Tainted Peak
100% of 1 decks +98% synergy
Shadowblood Ridge
100% of 1 decks +97% synergy
Raucous Theater
100% of 1 decks +97% synergy
Temple of Malice
100% of 1 decks +97% synergy
Rakdos Carnarium
100% of 1 decks +97% synergy
Foreboding Ruins
100% of 1 decks +96% synergy
Haunted Ridge
100% of 1 decks +96% synergy
Sulfurous Springs
100% of 1 decks +96% synergy
Luxury Suite
100% of 1 decks +94% synergy
Dragonskull Summit
100% of 1 decks +93% synergy
Smoldering Marsh
100% of 1 decks +93% synergy
Blood Crypt
100% of 1 decks +91% synergy
Gemstone Caverns
33% of 3 decks +28% synergy
Cavern of Souls
33% of 3 decks +27% synergy
Evolving Wilds
33% of 3 decks +12% synergy
Command Tower
33% of 3 decks -40% synergy