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
0.2%inclusion13 decks7.79K decks
Atraxa, Praetors' Voice
0.0%inclusion9 decks38.6K decks
Rubinia Soulsinger
0.1%inclusion1 decks883 decks
Pir, Imaginative Rascal // Toothy, Imaginary Friend
0.0%inclusion1 decks2.94K decks
High Synergy Cards
Deathspore Thallid
100%inclusion22 decks22 decks
100%synergy
Sporesower Thallid
92%inclusion22 decks24 decks
91%synergy
Utopia Mycon
92%inclusion22 decks24 decks
91%synergy
Slimefoot, the Stowaway
91%inclusion20 decks22 decks
90%synergy
Psychotrope Thallid
88%inclusion21 decks24 decks
87%synergy
Vitaspore Thallid
83%inclusion20 decks24 decks
83%synergy
Thelon of Havenwood
82%inclusion18 decks22 decks
81%synergy
Mycologist
80%inclusion8 decks10 decks
80%synergy
Thallid Shell-Dweller
79%inclusion19 decks24 decks
79%synergy
Thallid
79%inclusion19 decks24 decks
79%synergy
Top Cards
Thallid Germinator
75%inclusion18 decks24 decks
75%synergy
Mycoloth
75%inclusion18 decks24 decks
73%synergy
Nemata, Primeval Warden
73%inclusion16 decks22 decks
71%synergy
Winding Constrictor
73%inclusion16 decks22 decks
69%synergy
Tekuthal, Inquiry Dominus
71%inclusion17 decks24 decks
68%synergy
Ghave, Guru of Spores
67%inclusion6 decks9 decks
66%synergy
Tendershoot Dryad
67%inclusion16 decks24 decks
64%synergy
Ezuri, Stalker of Spheres
67%inclusion16 decks24 decks
64%synergy
Evolution Sage
67%inclusion16 decks24 decks
61%synergy
Savage Thallid
63%inclusion15 decks24 decks
62%synergy
Game Changers
Cyclonic Rift
21%inclusion5 decks24 decks
-2%synergy
Demonic Tutor
14%inclusion3 decks22 decks
-6%synergy
Field of the Dead
13%inclusion3 decks24 decks
10%synergy
Creatures
Pallid Mycoderm
60%inclusion6 decks10 decks
60%synergy
Elvish Farmer
54%inclusion13 decks24 decks
54%synergy
Spore Flower
54%inclusion13 decks24 decks
54%synergy
Thallid Devourer
50%inclusion12 decks24 decks
50%synergy
Lae'zel, Vlaakith's Champion
50%inclusion5 decks10 decks
47%synergy
Pir, Imaginative Rascal
42%inclusion10 decks24 decks
41%synergy
Mondrak, Glory Dominus
40%inclusion4 decks10 decks
33%synergy
Brightcap Badger
38%inclusion5 decks13 decks
37%synergy
Cankerbloom
38%inclusion9 decks24 decks
33%synergy
Roaming Throne
38%inclusion9 decks24 decks
31%synergy
Zulaport Cutthroat
36%inclusion8 decks22 decks
28%synergy
Dreamtide Whale
36%inclusion5 decks14 decks
33%synergy
Xavier Sal, Infested Captain
32%inclusion7 decks22 decks
31%synergy
The Mycotyrant
32%inclusion7 decks22 decks
31%synergy
Sporecrown Thallid
29%inclusion7 decks24 decks
29%synergy
Thrummingbird
29%inclusion7 decks24 decks
26%synergy
Shroofus Sproutsire
27%inclusion3 decks11 decks
27%synergy
Yawgmoth, Thran Physician
27%inclusion6 decks22 decks
24%synergy
Blood Artist
27%inclusion6 decks22 decks
16%synergy
Nemata, Grove Guardian
25%inclusion6 decks24 decks
25%synergy
Danny Pink
25%inclusion6 decks24 decks
24%synergy
Vorinclex, Monstrous Raider
25%inclusion6 decks24 decks
22%synergy
Thallid Soothsayer
23%inclusion5 decks22 decks
23%synergy
Scheming Aspirant
23%inclusion5 decks22 decks
22%synergy
Mirkwood Bats
23%inclusion5 decks22 decks
13%synergy
Thorn Thallid
21%inclusion5 decks24 decks
21%synergy
Undercellar Myconid
21%inclusion5 decks24 decks
20%synergy
Sporemound
21%inclusion5 decks24 decks
20%synergy
Adrix and Nev, Twincasters
21%inclusion5 decks24 decks
16%synergy
Pitiless Plunderer
18%inclusion4 decks22 decks
10%synergy
Plaguemaw Beast
17%inclusion4 decks24 decks
16%synergy
Verdeloth the Ancient
17%inclusion4 decks24 decks
16%synergy
Kiora's Follower
17%inclusion4 decks24 decks
12%synergy
Mindbender Spores
13%inclusion3 decks24 decks
12%synergy
Verdant Force
13%inclusion3 decks24 decks
12%synergy
Gyre Sage
13%inclusion3 decks24 decks
9%synergy
Instants
Aura Mutation
50%inclusion5 decks10 decks
47%synergy
Ripples of Potential
42%inclusion10 decks24 decks
39%synergy
Sprout Swarm
38%inclusion9 decks24 decks
37%synergy
Assassin's Trophy
36%inclusion8 decks22 decks
6%synergy
Atomize
31%inclusion5 decks16 decks
27%synergy
Swords to Plowshares
30%inclusion3 decks10 decks
-32%synergy
Serum Snare
25%inclusion6 decks24 decks
24%synergy
Experimental Augury
25%inclusion6 decks24 decks
23%synergy
Counterspell
25%inclusion6 decks24 decks
-17%synergy
Fuel for the Cause
21%inclusion5 decks24 decks
20%synergy
Steady Progress
21%inclusion5 decks24 decks
20%synergy
Heroic Intervention
21%inclusion5 decks24 decks
-10%synergy
Beast Within
21%inclusion5 decks24 decks
-14%synergy
Village Rites
18%inclusion4 decks22 decks
9%synergy
Arcane Denial
17%inclusion4 decks24 decks
-4%synergy
Reject Imperfection
13%inclusion3 decks24 decks
12%synergy
Cackling Counterpart
13%inclusion3 decks24 decks
11%synergy
Simic Charm
13%inclusion3 decks24 decks
10%synergy
Growth Spiral
13%inclusion3 decks24 decks
-8%synergy
Sorceries
Farseek
54%inclusion13 decks24 decks
19%synergy
Tezzeret's Gambit
46%inclusion11 decks24 decks
43%synergy
Unnatural Restoration
42%inclusion10 decks24 decks
39%synergy
Saproling Symbiosis
29%inclusion7 decks24 decks
29%synergy
Three Visits
29%inclusion7 decks24 decks
5%synergy
Cultivate
29%inclusion7 decks24 decks
-14%synergy
Nature's Lore
25%inclusion6 decks24 decks
-7%synergy
Rampant Growth
21%inclusion5 decks24 decks
-13%synergy
Fungal Sprouting
17%inclusion4 decks24 decks
16%synergy
Contentious Plan
17%inclusion4 decks24 decks
15%synergy
Drown in Ichor
14%inclusion3 decks22 decks
12%synergy
Toxic Deluge
14%inclusion3 decks22 decks
-5%synergy
Thirsting Roots
13%inclusion3 decks24 decks
11%synergy
Rite of Replication
13%inclusion3 decks24 decks
9%synergy
Overwhelming Stampede
13%inclusion3 decks24 decks
7%synergy
Utility Artifacts
Skullclamp
63%inclusion15 decks24 decks
51%synergy
Phyrexian Altar
38%inclusion9 decks24 decks
34%synergy
Contagion Engine
25%inclusion6 decks24 decks
24%synergy
The Ozolith
21%inclusion5 decks24 decks
17%synergy
Lightning Greaves
21%inclusion5 decks24 decks
-4%synergy
Swiftfoot Boots
21%inclusion5 decks24 decks
-6%synergy
Contagion Clasp
17%inclusion4 decks24 decks
16%synergy
Magewright's Stone
13%inclusion3 decks24 decks
12%synergy
Eldrazi Monument
13%inclusion3 decks24 decks
11%synergy
Thousand-Year Elixir
13%inclusion3 decks24 decks
11%synergy
Enchantments
Fungal Plots
54%inclusion13 decks24 decks
54%synergy
Inexorable Tide
50%inclusion12 decks24 decks
47%synergy
Paradox Haze
42%inclusion10 decks24 decks
40%synergy
Anointed Procession
40%inclusion4 decks10 decks
33%synergy
Fungal Bloom
38%inclusion9 decks24 decks
37%synergy
Intruder Alarm
38%inclusion9 decks24 decks
36%synergy
Parallel Lives
29%inclusion7 decks24 decks
23%synergy
Primal Vigor
25%inclusion6 decks24 decks
22%synergy
Necrogenesis
23%inclusion5 decks22 decks
22%synergy
Moldervine Reclamation
23%inclusion5 decks22 decks
15%synergy
Growing Rites of Itlimoc
21%inclusion5 decks24 decks
15%synergy
Life and Limb
17%inclusion4 decks24 decks
16%synergy
Verdant Embrace
17%inclusion4 decks24 decks
16%synergy
Golgari Germination
14%inclusion3 decks22 decks
13%synergy
Sporogenesis
13%inclusion3 decks24 decks
12%synergy
Freed from the Real
13%inclusion3 decks24 decks
10%synergy
Cryptolith Rite
13%inclusion3 decks24 decks
9%synergy
Reflections of Littjara
13%inclusion3 decks24 decks
8%synergy
Beastmaster Ascension
13%inclusion3 decks24 decks
7%synergy
Planeswalkers
Vraska, Betrayal's Sting
27%inclusion6 decks22 decks
25%synergy
Utility Lands
Karn's Bastion
50%inclusion12 decks24 decks
45%synergy
Gavony Township
30%inclusion3 decks10 decks
22%synergy
Yavimaya, Cradle of Growth
29%inclusion7 decks24 decks
20%synergy
Reliquary Tower
25%inclusion6 decks24 decks
-5%synergy
Three Tree City
23%inclusion3 decks13 decks
18%synergy
Nesting Grounds
21%inclusion5 decks24 decks
19%synergy
Otawara, Soaring City
21%inclusion5 decks24 decks
4%synergy
Grim Backwoods
18%inclusion4 decks22 decks
15%synergy
Hickory Woodlot
17%inclusion4 decks24 decks
16%synergy
Oran-Rief, the Vastwood
17%inclusion4 decks24 decks
13%synergy
Boseiju, Who Endures
17%inclusion4 decks24 decks
-2%synergy
Peat Bog
14%inclusion3 decks22 decks
13%synergy
Saprazzan Skerry
13%inclusion3 decks24 decks
12%synergy
Urborg, Tomb of Yawgmoth
13%inclusion3 decks24 decks
4%synergy
Mana Artifacts
Sol Ring
83%inclusion20 decks24 decks
0%synergy
Arcane Signet
54%inclusion13 decks24 decks
-18%synergy
Everflowing Chalice
33%inclusion8 decks24 decks
29%synergy
Talisman of Curiosity
21%inclusion5 decks24 decks
8%synergy
Talisman of Resilience
18%inclusion4 decks22 decks
5%synergy
Astral Cornucopia
17%inclusion4 decks24 decks
16%synergy
Staff of Compleation
17%inclusion4 decks24 decks
16%synergy
Replicating Ring
13%inclusion3 decks24 decks
11%synergy
Lands
Command Tower
96%inclusion23 decks24 decks
22%synergy
Temple Garden
80%inclusion8 decks10 decks
41%synergy
Exotic Orchard
75%inclusion18 decks24 decks
39%synergy
Spara's Headquarters
60%inclusion6 decks10 decks
32%synergy
Breeding Pool
58%inclusion14 decks24 decks
17%synergy
Indatha Triome
56%inclusion5 decks9 decks
28%synergy
Woodland Cemetery
55%inclusion12 decks22 decks
23%synergy
Overgrown Tomb
55%inclusion12 decks22 decks
14%synergy
Bountiful Promenade
50%inclusion5 decks10 decks
28%synergy
Zagoth Triome
50%inclusion11 decks22 decks
22%synergy
Hinterland Harbor
46%inclusion11 decks24 decks
13%synergy
Godless Shrine
44%inclusion4 decks9 decks
4%synergy
Dreamroot Cascade
42%inclusion10 decks24 decks
20%synergy
Rejuvenating Springs
42%inclusion10 decks24 decks
15%synergy
Hallowed Fountain
40%inclusion4 decks10 decks
1%synergy
Foreboding Landscape
36%inclusion4 decks11 decks
27%synergy
Deathcap Glade
36%inclusion8 decks22 decks
23%synergy
Undergrowth Stadium
36%inclusion8 decks22 decks
13%synergy
Llanowar Wastes
36%inclusion8 decks22 decks
10%synergy
Raffine's Tower
33%inclusion3 decks9 decks
9%synergy
Yavimaya Coast
33%inclusion8 decks24 decks
6%synergy
Watery Grave
32%inclusion7 decks22 decks
-9%synergy
Sea of Clouds
30%inclusion3 decks10 decks
5%synergy
Glacial Fortress
30%inclusion3 decks10 decks
-2%synergy
Fabled Passage
29%inclusion7 decks24 decks
20%synergy
Evolving Wilds
29%inclusion7 decks24 decks
8%synergy
Path of Ancestry
29%inclusion7 decks24 decks
7%synergy
Darkbore Pathway
27%inclusion6 decks22 decks
20%synergy
Morphic Pool
27%inclusion6 decks22 decks
3%synergy
Terramorphic Expanse
25%inclusion6 decks24 decks
10%synergy
Drowned Catacomb
23%inclusion5 decks22 decks
-6%synergy
Reflecting Pool
21%inclusion5 decks24 decks
16%synergy
Barkchannel Pathway
21%inclusion5 decks24 decks
14%synergy
Verdant Catacombs
21%inclusion5 decks24 decks
10%synergy
Temple of Mystery
21%inclusion5 decks24 decks
4%synergy
Clearwater Pathway
18%inclusion4 decks22 decks
10%synergy
Twilight Mire
18%inclusion4 decks22 decks
5%synergy
Golgari Rot Farm
18%inclusion4 decks22 decks
1%synergy
Shipwreck Marsh
18%inclusion4 decks22 decks
0%synergy
Opulent Palace
18%inclusion4 decks22 decks
-10%synergy
Sunken Hollow
18%inclusion4 decks22 decks
-16%synergy
Overflowing Basin
17%inclusion3 decks18 decks
9%synergy
Marsh Flats
17%inclusion4 decks24 decks
6%synergy
Flooded Grove
17%inclusion4 decks24 decks
2%synergy
Underground Mortuary
16%inclusion3 decks19 decks
3%synergy
Dimir Aqueduct
14%inclusion3 decks22 decks
-1%synergy
Temple of Deceit
14%inclusion3 decks22 decks
-1%synergy
Underground River
14%inclusion3 decks22 decks
-9%synergy
Gemstone Mine
13%inclusion3 decks24 decks
12%synergy
Mana Confluence
13%inclusion3 decks24 decks
6%synergy