Sporoloth Ancient
Tainted Observer
Ashnod's Altar
Doubling Season

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You control a creature with at least three spore counters on it.

   Steps

How does this combo work?
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 by sacrificing a Saproling, adding .
4
Resolve the first Tainted Observer trigger, causing you to pay 2 to put two spore counters on any creature you control.
5
Resolve the second Tainted Observer trigger, choosing not to pay.
6
Repeat.

   Results

What do I get from this combo?
Infinite colorless mana
Infinite creature tokens
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite proliferate
Infinite sacrifice triggers
Xavier Sal, Infested Captain
0.1%inclusion11 decks7.47K decks
Atraxa, Praetors' Voice
0.0%inclusion4 decks38.5K decks
Rubinia Soulsinger
0.1%inclusion1 decks908 decks
Pir, Imaginative Rascal // Toothy, Imaginary Friend
0.0%inclusion1 decks2.87K decks
New Cards
Ferrafor, Young Yew
100%inclusion1 decks1 decks
99%synergy
Springleaf Parade
100%inclusion1 decks1 decks
96%synergy
High Synergy Cards
Deathspore Thallid
100%inclusion15 decks15 decks
100%synergy
Slimefoot, the Stowaway
93%inclusion14 decks15 decks
92%synergy
Thallid Germinator
88%inclusion15 decks17 decks
88%synergy
Sporesower Thallid
88%inclusion15 decks17 decks
88%synergy
Psychotrope Thallid
88%inclusion15 decks17 decks
88%synergy
Utopia Mycon
88%inclusion15 decks17 decks
88%synergy
Thelon of Havenwood
87%inclusion13 decks15 decks
86%synergy
Vitaspore Thallid
82%inclusion14 decks17 decks
82%synergy
Thallid Shell-Dweller
82%inclusion14 decks17 decks
82%synergy
Thallid
76%inclusion13 decks17 decks
76%synergy
Top Cards
Winding Constrictor
73%inclusion11 decks15 decks
70%synergy
Savage Thallid
71%inclusion12 decks17 decks
70%synergy
Skullclamp
71%inclusion12 decks17 decks
59%synergy
Tekuthal, Inquiry Dominus
65%inclusion11 decks17 decks
62%synergy
Evolution Sage
65%inclusion11 decks17 decks
58%synergy
Nemata, Primeval Warden
60%inclusion9 decks15 decks
58%synergy
Elvish Farmer
59%inclusion10 decks17 decks
59%synergy
Spore Flower
59%inclusion10 decks17 decks
59%synergy
Fungal Plots
59%inclusion10 decks17 decks
58%synergy
Mycoloth
59%inclusion10 decks17 decks
57%synergy
Game Changers
Cyclonic Rift
18%inclusion3 decks17 decks
-5%synergy
Creatures
Mycologist
60%inclusion3 decks5 decks
60%synergy
Pallid Mycoderm
60%inclusion3 decks5 decks
60%synergy
Lae'zel, Vlaakith's Champion
60%inclusion3 decks5 decks
58%synergy
Ezuri, Stalker of Spheres
59%inclusion10 decks17 decks
56%synergy
Thallid Devourer
53%inclusion9 decks17 decks
53%synergy
Tendershoot Dryad
53%inclusion9 decks17 decks
51%synergy
Pir, Imaginative Rascal
41%inclusion7 decks17 decks
41%synergy
Zulaport Cutthroat
40%inclusion6 decks15 decks
31%synergy
Brightcap Badger
38%inclusion5 decks13 decks
38%synergy
Dreamtide Whale
36%inclusion5 decks14 decks
33%synergy
Cankerbloom
35%inclusion6 decks17 decks
31%synergy
Thorn Thallid
29%inclusion5 decks17 decks
29%synergy
Roaming Throne
29%inclusion5 decks17 decks
23%synergy
The Mycotyrant
27%inclusion4 decks15 decks
26%synergy
Pitiless Plunderer
27%inclusion4 decks15 decks
18%synergy
Mirkwood Bats
27%inclusion4 decks15 decks
18%synergy
Blood Artist
27%inclusion4 decks15 decks
15%synergy
Nemata, Grove Guardian
24%inclusion4 decks17 decks
23%synergy
Verdeloth the Ancient
24%inclusion4 decks17 decks
23%synergy
Sporecrown Thallid
24%inclusion4 decks17 decks
23%synergy
Sporemound
24%inclusion4 decks17 decks
22%synergy
Danny Pink
24%inclusion4 decks17 decks
22%synergy
Vorinclex, Monstrous Raider
24%inclusion4 decks17 decks
21%synergy
Adrix and Nev, Twincasters
24%inclusion4 decks17 decks
19%synergy
Thallid Soothsayer
20%inclusion3 decks15 decks
20%synergy
Scheming Aspirant
20%inclusion3 decks15 decks
20%synergy
Xavier Sal, Infested Captain
20%inclusion3 decks15 decks
19%synergy
Yawgmoth, Thran Physician
20%inclusion3 decks15 decks
17%synergy
Plaguemaw Beast
18%inclusion3 decks17 decks
17%synergy
Undercellar Myconid
18%inclusion3 decks17 decks
17%synergy
Verdant Force
18%inclusion3 decks17 decks
17%synergy
Thrummingbird
18%inclusion3 decks17 decks
14%synergy
Instants
Ripples of Potential
47%inclusion8 decks17 decks
44%synergy
Assassin's Trophy
40%inclusion6 decks15 decks
9%synergy
Sprout Swarm
35%inclusion6 decks17 decks
35%synergy
Experimental Augury
35%inclusion6 decks17 decks
33%synergy
Serum Snare
29%inclusion5 decks17 decks
29%synergy
Beast Within
29%inclusion5 decks17 decks
-5%synergy
Counterspell
29%inclusion5 decks17 decks
-12%synergy
Atomize
27%inclusion4 decks15 decks
23%synergy
Village Rites
27%inclusion4 decks15 decks
17%synergy
Fuel for the Cause
24%inclusion4 decks17 decks
23%synergy
Steady Progress
18%inclusion3 decks17 decks
17%synergy
Cackling Counterpart
18%inclusion3 decks17 decks
17%synergy
Arcane Denial
18%inclusion3 decks17 decks
-3%synergy
Heroic Intervention
18%inclusion3 decks17 decks
-13%synergy
Sorceries
Tezzeret's Gambit
47%inclusion8 decks17 decks
44%synergy
Farseek
47%inclusion8 decks17 decks
11%synergy
Unnatural Restoration
41%inclusion7 decks17 decks
39%synergy
Saproling Symbiosis
29%inclusion5 decks17 decks
29%synergy
Three Visits
29%inclusion5 decks17 decks
5%synergy
Rampant Growth
29%inclusion5 decks17 decks
-4%synergy
Cultivate
29%inclusion5 decks17 decks
-13%synergy
Nature's Lore
24%inclusion4 decks17 decks
-8%synergy
Contentious Plan
18%inclusion3 decks17 decks
16%synergy
Utility Artifacts
Phyrexian Altar
35%inclusion6 decks17 decks
32%synergy
Contagion Engine
24%inclusion4 decks17 decks
23%synergy
Thousand-Year Elixir
18%inclusion3 decks17 decks
16%synergy
The Ozolith
18%inclusion3 decks17 decks
14%synergy
Lightning Greaves
18%inclusion3 decks17 decks
-7%synergy
Swiftfoot Boots
18%inclusion3 decks17 decks
-10%synergy
Enchantments
Fungal Bloom
41%inclusion7 decks17 decks
41%synergy
Intruder Alarm
41%inclusion7 decks17 decks
39%synergy
Inexorable Tide
41%inclusion7 decks17 decks
38%synergy
Paradox Haze
29%inclusion5 decks17 decks
28%synergy
Primal Vigor
29%inclusion5 decks17 decks
26%synergy
Moldervine Reclamation
27%inclusion4 decks15 decks
20%synergy
Parallel Lives
24%inclusion4 decks17 decks
17%synergy
Innkeeper's Talent
23%inclusion3 decks13 decks
19%synergy
Necrogenesis
20%inclusion3 decks15 decks
19%synergy
Golgari Germination
20%inclusion3 decks15 decks
19%synergy
Bastion of Remembrance
20%inclusion3 decks15 decks
13%synergy
Cryptolith Rite
18%inclusion3 decks17 decks
14%synergy
Growing Rites of Itlimoc
18%inclusion3 decks17 decks
12%synergy
Planeswalkers
Vraska, Betrayal's Sting
27%inclusion4 decks15 decks
24%synergy
Utility Lands
Karn's Bastion
47%inclusion8 decks17 decks
42%synergy
Nesting Grounds
29%inclusion5 decks17 decks
27%synergy
Yavimaya, Cradle of Growth
29%inclusion5 decks17 decks
21%synergy
Hickory Woodlot
24%inclusion4 decks17 decks
23%synergy
Oran-Rief, the Vastwood
24%inclusion4 decks17 decks
19%synergy
Reliquary Tower
24%inclusion4 decks17 decks
-6%synergy
Three Tree City
23%inclusion3 decks13 decks
18%synergy
Peat Bog
20%inclusion3 decks15 decks
20%synergy
Grim Backwoods
20%inclusion3 decks15 decks
17%synergy
Saprazzan Skerry
18%inclusion3 decks17 decks
17%synergy
Urborg, Tomb of Yawgmoth
18%inclusion3 decks17 decks
9%synergy
Boseiju, Who Endures
18%inclusion3 decks17 decks
-1%synergy
Mana Artifacts
Sol Ring
88%inclusion15 decks17 decks
4%synergy
Arcane Signet
41%inclusion7 decks17 decks
-31%synergy
Everflowing Chalice
24%inclusion4 decks17 decks
19%synergy
Talisman of Curiosity
24%inclusion4 decks17 decks
11%synergy
Talisman of Resilience
20%inclusion3 decks15 decks
7%synergy
Astral Cornucopia
18%inclusion3 decks17 decks
17%synergy
Replicating Ring
18%inclusion3 decks17 decks
16%synergy
Staff of Compleation
18%inclusion3 decks17 decks
16%synergy
Lands
Command Tower
94%inclusion16 decks17 decks
20%synergy
Temple Garden
80%inclusion4 decks5 decks
41%synergy
Exotic Orchard
65%inclusion11 decks17 decks
28%synergy
Spara's Headquarters
60%inclusion3 decks5 decks
32%synergy
Zagoth Triome
53%inclusion8 decks15 decks
26%synergy
Woodland Cemetery
53%inclusion8 decks15 decks
21%synergy
Overgrown Tomb
53%inclusion8 decks15 decks
12%synergy
Breeding Pool
53%inclusion9 decks17 decks
11%synergy
Fabled Passage
47%inclusion8 decks17 decks
38%synergy
Rejuvenating Springs
47%inclusion8 decks17 decks
21%synergy
Hinterland Harbor
47%inclusion8 decks17 decks
14%synergy
Llanowar Wastes
47%inclusion7 decks15 decks
20%synergy
Yavimaya Coast
41%inclusion7 decks17 decks
14%synergy
Undergrowth Stadium
40%inclusion6 decks15 decks
17%synergy
Foreboding Landscape
36%inclusion4 decks11 decks
27%synergy
Evolving Wilds
35%inclusion6 decks17 decks
15%synergy
Dreamroot Cascade
35%inclusion6 decks17 decks
14%synergy
Darkbore Pathway
33%inclusion5 decks15 decks
27%synergy
Deathcap Glade
33%inclusion5 decks15 decks
20%synergy
Terramorphic Expanse
29%inclusion5 decks17 decks
14%synergy
Path of Ancestry
29%inclusion5 decks17 decks
7%synergy
Underground Mortuary
27%inclusion4 decks15 decks
14%synergy
Drowned Catacomb
27%inclusion4 decks15 decks
-2%synergy
Watery Grave
27%inclusion4 decks15 decks
-15%synergy
Temple of Mystery
24%inclusion4 decks17 decks
7%synergy
Vivid Marsh
20%inclusion3 decks15 decks
19%synergy
Clearwater Pathway
20%inclusion3 decks15 decks
12%synergy
Underground River
20%inclusion3 decks15 decks
-3%synergy
Morphic Pool
20%inclusion3 decks15 decks
-4%synergy
Opulent Palace
20%inclusion3 decks15 decks
-8%synergy
Vivid Creek
18%inclusion3 decks17 decks
17%synergy
Vivid Grove
18%inclusion3 decks17 decks
17%synergy
Reflecting Pool
18%inclusion3 decks17 decks
12%synergy
Barkchannel Pathway
18%inclusion3 decks17 decks
11%synergy
Overflowing Basin
18%inclusion3 decks17 decks
10%synergy
Verdant Catacombs
18%inclusion3 decks17 decks
7%synergy
Hedge Maze
18%inclusion3 decks17 decks
7%synergy
Misty Rainforest
18%inclusion3 decks17 decks
6%synergy