Cauldron of Souls + Dross Scorpion + Ashnod's Altar + Biotransference

Cauldron of Souls
Dross Scorpion
Ashnod's Altar
Biotransference

Requires
Cauldron of Souls must be on the battlefield. Dross Scorpion must be on the battlefield. Ashnod's Altar must be on the battlefield. Biotransference must be on the battlefield. An opponent was dealt damage this turn. The creature with bloodthirst does not have a -1/-1 counter on it.
Steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Ashnod's Altar by sacrificing the creature with bloodthirst, adding .
  3. When the creature dies, its persist ability and Dross Scorpion trigger.
  4. Resolve the persist trigger, returning the creature from your graveyard to the battlefield, which enters the battlefield with at least one +1/+1 counter on it due to its bloodthirst ability.
  5. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls.
  6. Repeat.
Results
Infinite LTB. Infinite ETB. Infinite sacrifice triggers. Infinite death triggers. Infinite colorless mana.

Imotekh the Stormlord
0.05% of 6538 decks 3 decks
Totentanz, Swarm Piper
0.04% of 2765 decks 1 decks
Sharuum the Hegemon
0.05% of 1960 decks 1 decks
Braids, Arisen Nightmare
0.01% of 7033 decks 1 decks
Glissa, the Traitor
0.04% of 2530 decks 1 decks
Trazyn the Infinite
0.05% of 1990 decks 1 decks
Fain, the Broker
0.36% of 279 decks 1 decks
New Cards
Rendmaw, Creaking Nest
100% of 1 decks +95% synergy
High Synergy Cards
Illuminor Szeras
67% of 9 decks +66% synergy
Myr Retriever
67% of 9 decks +65% synergy
Psychomancer
56% of 9 decks +55% synergy
Junk Diver
56% of 9 decks +55% synergy
Nim Deathmantle
56% of 9 decks +55% synergy
Clock of Omens
56% of 9 decks +55% synergy
Scrap Trawler
56% of 9 decks +54% synergy
Disciple of the Vault
56% of 9 decks +53% synergy
Skeleton Shard
44% of 9 decks +44% synergy
Scarecrone
44% of 9 decks +44% synergy
Top Cards
Mind Stone
56% of 9 decks +38% synergy
Workshop Assistant
44% of 9 decks +44% synergy
Imotekh the Stormlord
44% of 9 decks +44% synergy
Grinding Station
44% of 9 decks +44% synergy
Metalwork Colossus
44% of 9 decks +43% synergy
Sceptre of Eternal Glory
44% of 9 decks +43% synergy
Necron Deathmark
44% of 9 decks +43% synergy
Krark-Clan Ironworks
44% of 9 decks +43% synergy
Trading Post
44% of 9 decks +43% synergy
Jhoira's Familiar
44% of 9 decks +43% synergy
Creatures
Vectis Dominator
100% of 1 decks +100% synergy
Tower Gargoyle
100% of 1 decks +100% synergy
Esper Sojourners
100% of 1 decks +100% synergy
Arcanist's Owl
100% of 1 decks +100% synergy
Flamewar, Brash Veteran
100% of 1 decks +100% synergy
Umori, the Collector
100% of 1 decks +99% synergy
Arcbound Condor
100% of 2 decks +99% synergy
Chaos Defiler
100% of 1 decks +99% synergy
Magister Sphinx
100% of 1 decks +98% synergy
Essence Warden
100% of 1 decks +97% synergy
Combustible Gearhulk
100% of 1 decks +97% synergy
Gold Myr
100% of 1 decks +97% synergy
Silver Myr
100% of 1 decks +97% synergy
Haywire Mite
100% of 1 decks +96% synergy
Aftermath Analyst
100% of 1 decks +96% synergy
Etherium Sculptor
100% of 1 decks +94% synergy
Imperial Recruiter
100% of 1 decks +94% synergy
Baleful Strix
100% of 1 decks +87% synergy
Retrofitted Transmogrant
50% of 2 decks +49% synergy
Marionette Apprentice
50% of 2 decks +42% synergy
Marionette Master
44% of 9 decks +41% synergy
Foundry Inspector
44% of 9 decks +40% synergy
Pitiless Plunderer
44% of 9 decks +37% synergy
Solemn Simulacrum
44% of 9 decks +30% synergy
Triskelion
33% of 9 decks +33% synergy
Cryptek
33% of 9 decks +33% synergy
Mikaeus, the Unhallowed
33% of 9 decks +31% synergy
Cyberman Patrol
25% of 4 decks +24% synergy
Workhorse
22% of 9 decks +22% synergy
Cathodion
22% of 9 decks +22% synergy
Voltaic Construct
22% of 9 decks +22% synergy
Clay Revenant
22% of 9 decks +22% synergy
Plasmancer
22% of 9 decks +22% synergy
Necron Overlord
22% of 9 decks +22% synergy
Pili-Pala
22% of 9 decks +22% synergy
Lokhust Heavy Destroyer
22% of 9 decks +22% synergy
Arcbound Ravager
22% of 9 decks +22% synergy
Razorlash Transmogrant
22% of 9 decks +22% synergy
Canoptek Scarab Swarm
22% of 9 decks +22% synergy
Armix, Filigree Thrasher
22% of 9 decks +22% synergy
Cryptothrall
22% of 9 decks +22% synergy
Cityscape Leveler
22% of 9 decks +21% synergy
Kuldotha Forgemaster
22% of 9 decks +21% synergy
Hangarback Walker
22% of 9 decks +21% synergy
Liberator, Urza's Battlethopter
22% of 9 decks +21% synergy
Walking Ballista
22% of 9 decks +20% synergy
Noxious Gearhulk
22% of 9 decks +19% synergy
Reassembling Skeleton
22% of 9 decks +18% synergy
Burnished Hart
22% of 9 decks +18% synergy
Blood Artist
22% of 9 decks +11% synergy
Instants
Cauldron Haze
100% of 1 decks +100% synergy
Khalni Ambush
100% of 1 decks +98% synergy
Clever Concealment
100% of 1 decks +95% synergy
Enlightened Tutor
100% of 1 decks +82% synergy
Brainstorm
100% of 1 decks +79% synergy
Counterspell
100% of 1 decks +57% synergy
Swords to Plowshares
100% of 1 decks +37% synergy
Eviscerator's Insight
50% of 2 decks +48% synergy
Fell the Profane
50% of 2 decks +38% synergy
Corrupted Conviction
33% of 6 decks +28% synergy
Deadly Dispute
33% of 9 decks +22% synergy
Dark Ritual
33% of 9 decks +11% synergy
Village Rites
22% of 9 decks +12% synergy
Nasty End
17% of 6 decks +14% synergy
Shriveling Rot
11% of 9 decks +11% synergy
Undying Evil
11% of 9 decks +10% synergy
Songs of the Damned
11% of 9 decks +10% synergy
Darkness
11% of 9 decks +10% synergy
Hostile Negotiations
11% of 9 decks +10% synergy
Costly Plunder
11% of 9 decks +10% synergy
Dismember
11% of 9 decks +8% synergy
Plumb the Forbidden
11% of 9 decks +8% synergy
Defile
11% of 9 decks +8% synergy
Tragic Slip
11% of 9 decks +7% synergy
Cabal Ritual
11% of 9 decks +6% synergy
Go for the Throat
11% of 9 decks +4% synergy
Entomb
11% of 9 decks +4% synergy
Vampiric Tutor
11% of 9 decks -7% synergy
Sorceries
Hurricane
100% of 1 decks +100% synergy
Plea for Guidance
100% of 1 decks +100% synergy
Divination
100% of 1 decks +99% synergy
Bridgeworks Battle
100% of 1 decks +94% synergy
Wrath of God
100% of 1 decks +93% synergy
Blasphemous Act
100% of 1 decks +66% synergy
Lively Dirge
50% of 2 decks +48% synergy
Living Death
44% of 9 decks +39% synergy
Their Name Is Death
33% of 9 decks +32% synergy
Toxic Deluge
33% of 9 decks +16% synergy
Terisiare's Devastation
22% of 9 decks +22% synergy
Beacon of Unrest
22% of 9 decks +21% synergy
Mutilate
22% of 9 decks +20% synergy
Unmarked Grave
22% of 9 decks +19% synergy
Agadeem's Awakening
22% of 9 decks +19% synergy
Victimize
22% of 9 decks +11% synergy
Reanimate
22% of 9 decks +7% synergy
Feed the Swarm
22% of 9 decks +4% synergy
Demonic Tutor
22% of 9 decks -0% synergy
Lich-Knights' Conquest
20% of 5 decks +17% synergy
Beseech the Mirror
20% of 5 decks +16% synergy
Blood Divination
11% of 9 decks +11% synergy
Their Number Is Legion
11% of 9 decks +11% synergy
Tendrils of Agony
11% of 9 decks +10% synergy
Incarnation Technique
11% of 9 decks +10% synergy
Blood Money
11% of 9 decks +9% synergy
Decree of Pain
11% of 9 decks +8% synergy
Kindred Dominance
11% of 9 decks +7% synergy
Dread Return
11% of 9 decks +6% synergy
Exsanguinate
11% of 9 decks +6% synergy
Buried Alive
11% of 9 decks +6% synergy
Imperial Seal
11% of 9 decks +5% synergy
Damnation
11% of 9 decks +3% synergy
Night's Whisper
11% of 9 decks +2% synergy
Utility Artifacts
Boxing Ring
100% of 1 decks +100% synergy
Hunter's Bow
100% of 1 decks +99% synergy
Tithing Blade
50% of 2 decks +49% synergy
Unwinding Clock
44% of 9 decks +42% synergy
Phyrexian Altar
44% of 9 decks +40% synergy
Sting, the Glinting Dagger
40% of 5 decks +38% synergy
Convergence of Dominion
33% of 9 decks +33% synergy
Matzalantli, the Great Door
33% of 3 decks +32% synergy
Ichor Wellspring
33% of 9 decks +32% synergy
Staff of Domination
33% of 9 decks +32% synergy
Tarrian's Soulcleaver
33% of 3 decks +31% synergy
Vat of Rebirth
33% of 6 decks +31% synergy
Jet Medallion
33% of 9 decks +31% synergy
Altar of Dementia
33% of 9 decks +31% synergy
Wayfarer's Bauble
33% of 9 decks +23% synergy
Lightning Greaves
33% of 9 decks +8% synergy
Salvaging Station
22% of 9 decks +22% synergy
Summoning Station
22% of 9 decks +22% synergy
Servo Schematic
22% of 9 decks +22% synergy
Blasting Station
22% of 9 decks +22% synergy
Executioner's Capsule
22% of 9 decks +22% synergy
Prized Statue
22% of 9 decks +22% synergy
Codex Shredder
22% of 9 decks +21% synergy
Semblance Anvil
22% of 9 decks +21% synergy
Perpetual Timepiece
22% of 9 decks +21% synergy
Mishra's Bauble
22% of 9 decks +21% synergy
Cranial Plating
22% of 9 decks +20% synergy
Sculpting Steel
22% of 9 decks +20% synergy
Mystic Forge
22% of 9 decks +19% synergy
Idol of Oblivion
22% of 9 decks +18% synergy
Bolas's Citadel
22% of 9 decks +13% synergy
Skullclamp
22% of 9 decks +10% synergy
Lothlórien Blade
20% of 5 decks +20% synergy
Dross Skullbomb
17% of 6 decks +16% synergy
Palantír of Orthanc
17% of 6 decks +15% synergy
The One Ring
17% of 6 decks +8% synergy
Triangle of War
11% of 9 decks +11% synergy
Implement of Malice
11% of 9 decks +11% synergy
Carnage Altar
11% of 9 decks +11% synergy
Necrogen Spellbomb
11% of 9 decks +11% synergy
Dark Sphere
11% of 9 decks +11% synergy
Scythe of the Wretched
11% of 9 decks +11% synergy
Night Scythe
11% of 9 decks +11% synergy
Ghost Ark
11% of 9 decks +11% synergy
Necron Monolith
11% of 9 decks +11% synergy
Golem Foundry
11% of 9 decks +11% synergy
Retrofitter Foundry
11% of 9 decks +11% synergy
Gerrard's Hourglass Pendant
11% of 9 decks +11% synergy
Viridian Longbow
11% of 9 decks +11% synergy
Altar of Bhaal
11% of 9 decks +11% synergy
Enchantments
Careful Cultivation
100% of 1 decks +100% synergy
Nine Lives
100% of 1 decks +100% synergy
Solemnity
100% of 1 decks +99% synergy
Arcane Adaptation
100% of 1 decks +99% synergy
Fervor
100% of 1 decks +99% synergy
Concordant Crossroads
100% of 1 decks +97% synergy
Greater Good
100% of 1 decks +95% synergy
Land Tax
100% of 1 decks +93% synergy
Insidious Roots
100% of 1 decks +91% synergy
Ripples of Undeath
50% of 2 decks +43% synergy
The War in Heaven
22% of 9 decks +22% synergy
Tortured Existence
22% of 9 decks +21% synergy
Agent of the Iron Throne
22% of 9 decks +20% synergy
The Meathook Massacre
22% of 9 decks +17% synergy
Underhanded Designs
11% of 9 decks +11% synergy
Haunted Crossroads
11% of 9 decks +11% synergy
Pestilence
11% of 9 decks +10% synergy
Haunted One
11% of 9 decks +10% synergy
Phyrexian Scriptures
11% of 9 decks +10% synergy
Cemetery Tampering
11% of 9 decks +10% synergy
Out of the Tombs
11% of 9 decks +10% synergy
No Mercy
11% of 9 decks +9% synergy
Black Market
11% of 9 decks +6% synergy
Black Market Connections
11% of 9 decks +0% synergy
Planeswalkers
Daretti, Scrap Savant
100% of 1 decks +97% synergy
Liliana of the Veil
11% of 9 decks +10% synergy
Tevesh Szat, Doom of Fools
11% of 9 decks +10% synergy
Ugin, the Ineffable
11% of 9 decks +9% synergy
Utility Lands
Cave of the Frost Dragon
100% of 1 decks +99% synergy
Wirewood Lodge
100% of 1 decks +98% synergy
Great Furnace
100% of 1 decks +94% synergy
Shifting Woodland
100% of 1 decks +90% synergy
Boseiju, Who Endures
100% of 1 decks +80% synergy
Spymaster's Vault
50% of 2 decks +46% synergy
Fountainport
50% of 2 decks +46% synergy
Vault of Whispers
44% of 9 decks +40% synergy
Dakmor Salvage
22% of 9 decks +20% synergy
Cabal Stronghold
22% of 9 decks +19% synergy
Darksteel Citadel
22% of 9 decks +18% synergy
Buried Ruin
22% of 9 decks +17% synergy
Castle Locthwain
22% of 9 decks +17% synergy
Urza's Saga
22% of 9 decks +15% synergy
Phyrexian Tower
22% of 9 decks +14% synergy
Takenuma, Abandoned Mire
22% of 9 decks +12% synergy
Cabal Coffers
22% of 9 decks +11% synergy
Reliquary Tower
22% of 9 decks -7% synergy
Endless Sands
11% of 9 decks +11% synergy
Desert of the Glorified
11% of 9 decks +10% synergy
Crystal Vein
11% of 9 decks +10% synergy
Polluted Mire
11% of 9 decks +10% synergy
Mutavault
11% of 9 decks +10% synergy
Tomb Fortress
11% of 9 decks +10% synergy
Swarmyard
11% of 9 decks +10% synergy
Treasure Vault
11% of 9 decks +9% synergy
Witch's Cottage
11% of 9 decks +7% synergy
Barren Moor
11% of 9 decks +7% synergy
Command Beacon
11% of 9 decks +6% synergy
Nykthos, Shrine to Nyx
11% of 9 decks +5% synergy
War Room
11% of 9 decks +5% synergy
Urborg, Tomb of Yawgmoth
11% of 9 decks +1% synergy
Ancient Tomb
11% of 9 decks +1% synergy
Mana Artifacts
Talisman of Resilience
100% of 1 decks +88% synergy
Talisman of Indulgence
100% of 1 decks +74% synergy
Rakdos Signet
100% of 1 decks +70% synergy
Sol Ring
89% of 9 decks +4% synergy
Arcane Signet
67% of 9 decks -5% synergy
Gilded Lotus
44% of 9 decks +41% synergy
Hedron Archive
33% of 9 decks +30% synergy
Liquimetal Torque
33% of 9 decks +30% synergy
Thran Dynamo
22% of 9 decks +17% synergy
Commander's Sphere
22% of 9 decks +7% synergy
Thought Vessel
22% of 9 decks +5% synergy
Fellwar Stone
22% of 9 decks +1% synergy
Slagstone Refinery
11% of 9 decks +11% synergy
Chromatic Sphere
11% of 9 decks +11% synergy
Unstable Obelisk
11% of 9 decks +11% synergy
Sol Talisman
11% of 9 decks +10% synergy
Coveted Jewel
11% of 9 decks +10% synergy
Dreamstone Hedron
11% of 9 decks +10% synergy
Darksteel Ingot
11% of 9 decks +10% synergy
Prismatic Lens
11% of 9 decks +10% synergy
Nyx Lotus
11% of 9 decks +10% synergy
Springleaf Drum
11% of 9 decks +9% synergy
Caged Sun
11% of 9 decks +9% synergy
Worn Powerstone
11% of 9 decks +8% synergy
Basalt Monolith
11% of 9 decks +8% synergy
Mox Opal
11% of 9 decks +7% synergy
Jeweled Lotus
11% of 9 decks +5% synergy
Mana Vault
11% of 9 decks +5% synergy
Lotus Petal
11% of 9 decks +4% synergy
Mana Crypt
11% of 9 decks +2% synergy
Chromatic Lantern
11% of 9 decks +2% synergy
Lands
Darkmoss Bridge
100% of 1 decks +97% synergy
Drossforge Bridge
100% of 1 decks +96% synergy
Nurturing Peatland
100% of 1 decks +94% synergy
Graven Cairns
100% of 1 decks +92% synergy
Tainted Peak
100% of 1 decks +90% synergy
Viridescent Bog
100% of 1 decks +89% synergy
Shadowblood Ridge
100% of 1 decks +88% synergy
Rakdos Carnarium
100% of 1 decks +85% synergy
Underground Mortuary
100% of 1 decks +83% synergy
Golgari Rot Farm
100% of 1 decks +82% synergy
Sulfurous Springs
100% of 1 decks +80% synergy
Llanowar Wastes
100% of 1 decks +74% synergy
Undergrowth Stadium
100% of 1 decks +74% synergy
Woodland Cemetery
100% of 1 decks +72% synergy
Dragonskull Summit
100% of 1 decks +69% synergy
Smoldering Marsh
100% of 1 decks +68% synergy
Overgrown Tomb
100% of 1 decks +57% synergy
Myriad Landscape
22% of 9 decks +2% synergy
Command Tower
22% of 9 decks -52% synergy
Power Depot
11% of 9 decks +10% synergy
Gemstone Caverns
11% of 9 decks +6% synergy
Verdant Catacombs
11% of 9 decks -0% synergy