Sporoloth Ancient + Tainted Observer + Ashnod's Altar + Parallel Lives

Sporoloth Ancient
Tainted Observer
Ashnod's Altar
Parallel Lives

Requires
Sporoloth Ancient must be on the battlefield. Tainted Observer must be on the battlefield. Ashnod's Altar must be on the battlefield. Parallel Lives must be on the battlefield. You control a creature with at least three spore counters on it.
Steps
  1. Activate a creature you control by removing two spore counters from it, creating two 1/1 Saproling creature tokens.
  2. The Saprolings enter the battlefield, triggering Tainted Observer twice.
  3. Holding priority, activate Ashnod's Altar twice by sacrificing the Saprolings, adding .
  4. Resolve both Tainted Observer triggers, causing you to pay 4 to put two spore counters on any creature you control.
  5. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite proliferate. Infinite sacrifice triggers.

Atraxa, Praetors' Voice
0.01% of 35660 decks 4 decks
Xavier Sal, Infested Captain
0.02% of 4674 decks 1 decks
High Synergy Cards
Mycologist
100% of 4 decks +100% synergy
Pallid Mycoderm
100% of 4 decks +100% synergy
Vitaspore Thallid
100% of 5 decks +100% synergy
Sporesower Thallid
100% of 5 decks +100% synergy
Psychotrope Thallid
100% of 5 decks +100% synergy
Deathspore Thallid
100% of 5 decks +99% synergy
Utopia Mycon
100% of 5 decks +99% synergy
Ghave, Guru of Spores
100% of 4 decks +99% synergy
Slimefoot, the Stowaway
100% of 5 decks +98% synergy
Mycoloth
100% of 5 decks +98% synergy
Top Cards
Aura Mutation
100% of 4 decks +96% synergy
Elvish Farmer
80% of 5 decks +80% synergy
Spore Flower
80% of 5 decks +80% synergy
Savage Thallid
80% of 5 decks +80% synergy
Thallid
80% of 5 decks +80% synergy
Tendershoot Dryad
80% of 5 decks +78% synergy
Nemata, Primeval Warden
80% of 5 decks +77% synergy
Tekuthal, Inquiry Dominus
80% of 5 decks +77% synergy
Phyrexian Altar
80% of 5 decks +76% synergy
Reflections of Littjara
80% of 5 decks +75% synergy
Creatures
Xavier Sal, Infested Captain
100% of 3 decks +99% synergy
Mondrak, Glory Dominus
75% of 4 decks +66% synergy
Thallid Shell-Dweller
60% of 5 decks +60% synergy
Thelon of Havenwood
60% of 5 decks +60% synergy
Vorinclex, Monstrous Raider
60% of 5 decks +56% synergy
Ezuri, Stalker of Spheres
60% of 5 decks +56% synergy
Winding Constrictor
60% of 5 decks +56% synergy
Adrix and Nev, Twincasters
60% of 5 decks +55% synergy
The Mycotyrant
50% of 4 decks +48% synergy
Lae'zel, Vlaakith's Champion
50% of 4 decks +47% synergy
Thallid Devourer
40% of 5 decks +40% synergy
Thallid Soothsayer
40% of 5 decks +40% synergy
Nemata, Grove Guardian
40% of 5 decks +40% synergy
Thallid Germinator
40% of 5 decks +40% synergy
Sporecrown Thallid
40% of 5 decks +39% synergy
Undercellar Myconid
40% of 5 decks +39% synergy
Sporemound
40% of 5 decks +38% synergy
Mazirek, Kraul Death Priest
40% of 5 decks +37% synergy
Thrummingbird
40% of 5 decks +36% synergy
Corpsejack Menace
40% of 5 decks +35% synergy
Cankerbloom
40% of 5 decks +33% synergy
Ojer Taq, Deepest Foundation
33% of 3 decks +27% synergy
Roaming Throne
33% of 3 decks +24% synergy
Ertai, the Corrupted
25% of 4 decks +25% synergy
Tayam, Luminous Enigma
25% of 4 decks +25% synergy
Norn's Choirmaster
25% of 4 decks +23% synergy
Mindbender Spores
20% of 5 decks +20% synergy
Thorn Thallid
20% of 5 decks +20% synergy
Gilder Bairn
20% of 5 decks +20% synergy
Plaguemaw Beast
20% of 5 decks +20% synergy
Hell's Caretaker
20% of 5 decks +20% synergy
Verdeloth the Ancient
20% of 5 decks +20% synergy
Korozda Guildmage
20% of 5 decks +19% synergy
Scheming Aspirant
20% of 5 decks +19% synergy
Nullmage Shepherd
20% of 5 decks +19% synergy
Pir, Imaginative Rascal
20% of 5 decks +19% synergy
Species Specialist
20% of 5 decks +19% synergy
Merfolk Skydiver
20% of 5 decks +19% synergy
Skyfisher Spider
20% of 5 decks +18% synergy
Sakashima the Impostor
20% of 5 decks +18% synergy
Vigor
20% of 5 decks +17% synergy
Meren of Clan Nel Toth
20% of 5 decks +17% synergy
Yawgmoth, Thran Physician
20% of 5 decks +16% synergy
Haywire Mite
20% of 5 decks +16% synergy
Jaheira, Friend of the Forest
20% of 5 decks +15% synergy
Craterhoof Behemoth
20% of 5 decks +14% synergy
Evolution Sage
20% of 5 decks +13% synergy
Pitiless Plunderer
20% of 5 decks +12% synergy
Instants
Assassin's Trophy
60% of 5 decks +30% synergy
Fungal Rebirth
40% of 5 decks +39% synergy
Beast Within
40% of 5 decks +1% synergy
Ready // Willing
25% of 4 decks +24% synergy
For the Ancestors
25% of 4 decks +24% synergy
Deny the Witch
25% of 4 decks +23% synergy
And They Shall Know No Fear
25% of 4 decks +23% synergy
Brokers Confluence
25% of 4 decks +23% synergy
Eladamri's Call
25% of 4 decks +14% synergy
Enlightened Tutor
25% of 4 decks +7% synergy
Generous Gift
25% of 4 decks -1% synergy
Sprout Swarm
20% of 5 decks +20% synergy
Fuel for the Cause
20% of 5 decks +19% synergy
Prologue to Phyresis
20% of 5 decks +18% synergy
Plumb the Forbidden
20% of 5 decks +17% synergy
Deadly Dispute
20% of 5 decks +9% synergy
Worldly Tutor
20% of 5 decks +6% synergy
Putrefy
20% of 5 decks +4% synergy
Vampiric Tutor
20% of 5 decks +2% synergy
Cyclonic Rift
20% of 5 decks -8% synergy
Heroic Intervention
20% of 5 decks -10% synergy
Counterspell
20% of 5 decks -23% synergy
Sorceries
Saproling Symbiosis
40% of 5 decks +39% synergy
Unnatural Restoration
40% of 5 decks +36% synergy
Kodama's Reach
40% of 5 decks +9% synergy
Farseek
40% of 5 decks +6% synergy
Rampant Growth
40% of 5 decks +5% synergy
Cultivate
40% of 5 decks -6% synergy
Cleansing Meditation
25% of 4 decks +25% synergy
Altar of Bone
25% of 4 decks +25% synergy
Rout
25% of 4 decks +24% synergy
Rite of Oblivion
25% of 4 decks +22% synergy
Raise the Palisade
25% of 4 decks +21% synergy
Eerie Ultimatum
25% of 4 decks +13% synergy
Death Mutation
20% of 5 decks +20% synergy
Morbid Bloom
20% of 5 decks +20% synergy
Aether Mutation
20% of 5 decks +20% synergy
Cruel Tutor
20% of 5 decks +20% synergy
Primal Growth
20% of 5 decks +19% synergy
Eaten Alive
20% of 5 decks +19% synergy
Sylvan Tutor
20% of 5 decks +19% synergy
Clone Legion
20% of 5 decks +19% synergy
Triumph of the Hordes
20% of 5 decks +16% synergy
Tezzeret's Gambit
20% of 5 decks +16% synergy
Kindred Dominance
20% of 5 decks +16% synergy
Distant Melody
20% of 5 decks +15% synergy
Diabolic Intent
20% of 5 decks +11% synergy
Bala Ged Recovery
20% of 5 decks +11% synergy
Toxic Deluge
20% of 5 decks +3% synergy
Demonic Tutor
20% of 5 decks -2% synergy
Three Visits
20% of 5 decks -5% synergy
Nature's Lore
20% of 5 decks -12% synergy
Utility Artifacts
Contagion Engine
60% of 5 decks +59% synergy
Eldrazi Monument
40% of 5 decks +39% synergy
Contagion Clasp
40% of 5 decks +39% synergy
Skullclamp
40% of 5 decks +28% synergy
Norn's Wellspring
25% of 4 decks +24% synergy
Door of Destinies
20% of 5 decks +18% synergy
Coat of Arms
20% of 5 decks +18% synergy
Ichormoon Gauntlet
20% of 5 decks +18% synergy
Thousand-Year Elixir
20% of 5 decks +18% synergy
The Ozolith
20% of 5 decks +16% synergy
Herald's Horn
20% of 5 decks +14% synergy
Swiftfoot Boots
20% of 5 decks -8% synergy
Enchantments
Doubling Season
80% of 5 decks +71% synergy
Anointed Procession
75% of 4 decks +66% synergy
Fungal Plots
60% of 5 decks +59% synergy
Inexorable Tide
60% of 5 decks +57% synergy
Growing Rites of Itlimoc
60% of 5 decks +54% synergy
Fungal Bloom
40% of 5 decks +40% synergy
Life and Limb
40% of 5 decks +40% synergy
Necrogenesis
40% of 5 decks +39% synergy
Evolutionary Leap
40% of 5 decks +38% synergy
Paradox Haze
40% of 5 decks +38% synergy
Moldervine Reclamation
40% of 5 decks +31% synergy
Court of Ardenvale
33% of 3 decks +31% synergy
Parallax Wave
25% of 4 decks +25% synergy
Resourceful Defense
25% of 4 decks +24% synergy
Tribute to the World Tree
25% of 4 decks +17% synergy
Mirari's Wake
25% of 4 decks +11% synergy
Saproling Burst
20% of 5 decks +20% synergy
Saproling Cluster
20% of 5 decks +20% synergy
Perilous Forays
20% of 5 decks +20% synergy
Attrition
20% of 5 decks +19% synergy
Fecundity
20% of 5 decks +19% synergy
Arcane Adaptation
20% of 5 decks +19% synergy
Intruder Alarm
20% of 5 decks +18% synergy
Khalni Heart Expedition
20% of 5 decks +18% synergy
Primal Vigor
20% of 5 decks +17% synergy
Cryptolith Rite
20% of 5 decks +17% synergy
Beastmaster Ascension
20% of 5 decks +14% synergy
Kindred Discovery
20% of 5 decks +13% synergy
Planeswalkers
Vraska, Betrayal's Sting
60% of 5 decks +57% synergy
The Wanderer
25% of 4 decks +24% synergy
Kaya, Intangible Slayer
25% of 4 decks +23% synergy
Nissa, Ascended Animist
20% of 5 decks +18% synergy
Liliana, Dreadhorde General
20% of 5 decks +16% synergy
Ashiok, Dream Render
20% of 5 decks +16% synergy
Tyvar, Jubilant Brawler
20% of 5 decks +15% synergy
Utility Lands
Karn's Bastion
60% of 5 decks +55% synergy
Vitu-Ghazi, the City-Tree
50% of 4 decks +49% synergy
Yavimaya, Cradle of Growth
40% of 5 decks +31% synergy
Reliquary Tower
40% of 5 decks +10% synergy
Calciform Pools
25% of 4 decks +24% synergy
Saltcrusted Steppe
25% of 4 decks +24% synergy
Hall of Heliod's Generosity
25% of 4 decks +18% synergy
Gavony Township
25% of 4 decks +15% synergy
Arena
20% of 5 decks +20% synergy
Dreadship Reef
20% of 5 decks +19% synergy
Nesting Grounds
20% of 5 decks +18% synergy
Maze of Ith
20% of 5 decks +17% synergy
Academy Ruins
20% of 5 decks +15% synergy
Castle Garenbrig
20% of 5 decks +15% synergy
Phyrexian Tower
20% of 5 decks +11% synergy
Temple of the False God
20% of 5 decks +10% synergy
Otawara, Soaring City
20% of 5 decks +3% synergy
Mana Artifacts
Sol Ring
60% of 5 decks -24% synergy
Astral Cornucopia
40% of 5 decks +39% synergy
Arcane Signet
40% of 5 decks -32% synergy
Pillar of Origins
20% of 5 decks +20% synergy
Staff of Compleation
20% of 5 decks +19% synergy
Replicating Ring
20% of 5 decks +19% synergy
Everflowing Chalice
20% of 5 decks +15% synergy
Commander's Sphere
20% of 5 decks +5% synergy
Fellwar Stone
20% of 5 decks -1% synergy
Lands
Temple Garden
75% of 4 decks +35% synergy
Undergrowth Stadium
60% of 5 decks +34% synergy
Exotic Orchard
60% of 5 decks +24% synergy
Breeding Pool
60% of 5 decks +19% synergy
Overgrown Tomb
60% of 5 decks +18% synergy
Command Tower
60% of 5 decks -14% synergy
Bountiful Promenade
50% of 4 decks +26% synergy
Rejuvenating Springs
40% of 5 decks +11% synergy
Vivid Meadow
25% of 4 decks +24% synergy
Wooded Bastion
25% of 4 decks +21% synergy
Shattered Sanctum
25% of 4 decks +12% synergy
Deserted Beach
25% of 4 decks +9% synergy
Overgrown Farmland
25% of 4 decks +9% synergy
Sea of Clouds
25% of 4 decks -1% synergy
Raffine's Tower
25% of 4 decks -3% synergy
Indatha Triome
25% of 4 decks -6% synergy
Spara's Headquarters
25% of 4 decks -7% synergy
Prairie Stream
25% of 4 decks -9% synergy
Canopy Vista
25% of 4 decks -11% synergy
Godless Shrine
25% of 4 decks -16% synergy
Hallowed Fountain
25% of 4 decks -16% synergy
Mirrodin's Core
20% of 5 decks +20% synergy
Vivid Marsh
20% of 5 decks +19% synergy
Vivid Creek
20% of 5 decks +19% synergy
Vivid Grove
20% of 5 decks +19% synergy
Thriving Grove
20% of 5 decks +18% synergy
Thriving Isle
20% of 5 decks +17% synergy
Opal Palace
20% of 5 decks +17% synergy
Ice Tunnel
20% of 5 decks +17% synergy
Secluded Courtyard
20% of 5 decks +15% synergy
Unclaimed Territory
20% of 5 decks +15% synergy
Reflecting Pool
20% of 5 decks +15% synergy
Prismatic Vista
20% of 5 decks +15% synergy
Cavern of Souls
20% of 5 decks +13% synergy
Barkchannel Pathway
20% of 5 decks +11% synergy
Fabled Passage
20% of 5 decks +11% synergy
Clearwater Pathway
20% of 5 decks +10% synergy
Twilight Mire
20% of 5 decks +10% synergy
Windswept Heath
20% of 5 decks +10% synergy
Flooded Strand
20% of 5 decks +9% synergy
Arid Mesa
20% of 5 decks +9% synergy
Scalding Tarn
20% of 5 decks +9% synergy
Marsh Flats
20% of 5 decks +9% synergy
Polluted Delta
20% of 5 decks +9% synergy
Verdant Catacombs
20% of 5 decks +9% synergy
Misty Rainforest
20% of 5 decks +8% synergy
Flooded Grove
20% of 5 decks +8% synergy
Deathcap Glade
20% of 5 decks +6% synergy
Dreamroot Cascade
20% of 5 decks +1% synergy
Shipwreck Marsh
20% of 5 decks +1% synergy