Sporoloth Ancient + Tainted Observer + Ashnod's Altar + Primal Vigor

Sporoloth Ancient
Tainted Observer
Ashnod's Altar
Primal Vigor

Requires
Sporoloth Ancient must be on the battlefield. Tainted Observer must be on the battlefield. Ashnod's Altar must be on the battlefield. Primal Vigor 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.

Xavier Sal, Infested Captain
0.06% of 4674 decks 3 decks
Atraxa, Praetors' Voice
0.00% of 35660 decks 1 decks
High Synergy Cards
Vitaspore Thallid
100% of 4 decks +100% synergy
Psychotrope Thallid
100% of 4 decks +100% synergy
Deathspore Thallid
100% of 4 decks +99% synergy
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100% of 4 decks +99% synergy
Utopia Mycon
100% of 4 decks +99% synergy
Slimefoot, the Stowaway
100% of 4 decks +98% synergy
Mycoloth
100% of 4 decks +98% synergy
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100% of 4 decks +98% synergy
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100% of 4 decks +97% synergy
Creatures
Mycologist
100% of 1 decks +100% synergy
Pallid Mycoderm
100% of 1 decks +100% synergy
Ertai, the Corrupted
100% of 1 decks +100% synergy
Ghave, Guru of Spores
100% of 1 decks +99% synergy
Brightcap Badger
100% of 1 decks +98% synergy
Dreamtide Whale
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100% of 1 decks +91% synergy
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75% of 4 decks +75% synergy
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75% of 4 decks +75% synergy
Spore Flower
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Thallid Shell-Dweller
75% of 4 decks +75% synergy
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75% of 4 decks +75% synergy
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75% of 4 decks +72% synergy
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75% of 4 decks +71% synergy
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75% of 4 decks +68% synergy
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50% of 4 decks +50% synergy
Verdeloth the Ancient
50% of 4 decks +50% synergy
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50% of 4 decks +50% synergy
Sporemound
50% of 4 decks +48% synergy
Flux Channeler
50% of 4 decks +47% synergy
Mazirek, Kraul Death Priest
50% of 4 decks +47% synergy
Agent Frank Horrigan
50% of 2 decks +46% synergy
Thrummingbird
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Winding Constrictor
50% of 4 decks +46% synergy
Adrix and Nev, Twincasters
50% of 4 decks +45% synergy
Mirkwood Bats
50% of 4 decks +38% synergy
Thallid Soothsayer
25% of 4 decks +25% synergy
Plaguemaw Beast
25% of 4 decks +25% synergy
Nemata, Grove Guardian
25% of 4 decks +25% synergy
Hell's Caretaker
25% of 4 decks +25% synergy
Thelonite Hermit
25% of 4 decks +24% synergy
Undercellar Myconid
25% of 4 decks +24% synergy
Verdant Force
25% of 4 decks +24% synergy
Pir, Imaginative Rascal
25% of 4 decks +24% synergy
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25% of 4 decks +24% synergy
Creakwood Liege
25% of 4 decks +24% synergy
Danny Pink
25% of 4 decks +23% synergy
The Mycotyrant
25% of 4 decks +23% synergy
Scurry Oak
25% of 4 decks +23% synergy
Sakashima the Impostor
25% of 4 decks +23% synergy
Deepglow Skate
25% of 4 decks +23% synergy
Master Biomancer
25% of 4 decks +21% synergy
Yawgmoth, Thran Physician
25% of 4 decks +21% synergy
Corpsejack Menace
25% of 4 decks +20% synergy
Blood Artist
25% of 4 decks +13% synergy
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25% of 4 decks +7% synergy
Instants
Ready // Willing
100% of 1 decks +99% synergy
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100% of 1 decks +98% synergy
Aura Mutation
100% of 1 decks +96% synergy
Mutational Advantage
100% of 2 decks +94% synergy
Ripples of Potential
75% of 4 decks +72% synergy
Assassin's Trophy
75% of 4 decks +45% synergy
Experimental Augury
50% of 4 decks +47% synergy
Golgari Charm
50% of 4 decks +44% synergy
Atomize
50% of 2 decks +44% synergy
Beast Within
50% of 4 decks +11% synergy
Counterspell
50% of 4 decks +7% synergy
Sprout Swarm
25% of 4 decks +25% synergy
Fungal Rebirth
25% of 4 decks +24% synergy
Fuel for the Cause
25% of 4 decks +24% synergy
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25% of 4 decks +24% synergy
Steady Progress
25% of 4 decks +24% synergy
Serum Snare
25% of 4 decks +24% synergy
Mystic Reflection
25% of 4 decks +24% synergy
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25% of 4 decks +23% synergy
Gaea's Gift
25% of 4 decks +22% synergy
Snakeskin Veil
25% of 4 decks +21% synergy
Abrupt Decay
25% of 4 decks +14% synergy
Dark Ritual
25% of 4 decks +3% synergy
Negate
25% of 4 decks +2% synergy
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100% of 1 decks +97% synergy
Eerie Ultimatum
100% of 1 decks +88% synergy
Tezzeret's Gambit
75% of 4 decks +71% synergy
Unnatural Restoration
50% of 4 decks +46% synergy
Toxic Deluge
50% of 4 decks +33% synergy
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50% of 4 decks +19% synergy
Nature's Lore
50% of 4 decks +18% synergy
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50% of 4 decks +16% synergy
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25% of 4 decks +25% synergy
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25% of 4 decks +25% synergy
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25% of 4 decks +24% synergy
Replication Technique
25% of 4 decks +24% synergy
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Contentious Plan
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Contagion Clasp
25% of 4 decks +24% synergy
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25% of 4 decks +21% synergy
Enchantments
Insidious Roots
100% of 3 decks +92% synergy
Innkeeper's Talent
100% of 1 decks +91% synergy
Mirari's Wake
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