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 decks7.50K decks
Atraxa, Praetors' Voice
0.0%inclusion4 decks39.2K decks
Rubinia Soulsinger
0.1%inclusion1 decks923 decks
Pir, Imaginative Rascal // Toothy, Imaginary Friend
0.0%inclusion1 decks2.93K decks
New Cards
Ferrafor, Young Yew
33%inclusion1 decks3 decks
32%synergy
Springleaf Parade
33%inclusion1 decks3 decks
30%synergy
High Synergy Cards
Deathspore Thallid
100%inclusion17 decks17 decks
100%synergy
Slimefoot, the Stowaway
94%inclusion16 decks17 decks
93%synergy
Thallid Germinator
89%inclusion17 decks19 decks
89%synergy
Sporesower Thallid
89%inclusion17 decks19 decks
89%synergy
Psychotrope Thallid
89%inclusion17 decks19 decks
89%synergy
Utopia Mycon
89%inclusion17 decks19 decks
89%synergy
Vitaspore Thallid
84%inclusion16 decks19 decks
84%synergy
Thallid Shell-Dweller
84%inclusion16 decks19 decks
84%synergy
Thelon of Havenwood
82%inclusion14 decks17 decks
82%synergy
Thallid
79%inclusion15 decks19 decks
79%synergy
Top Cards
Savage Thallid
74%inclusion14 decks19 decks
73%synergy
Skullclamp
74%inclusion14 decks19 decks
62%synergy
Winding Constrictor
71%inclusion12 decks17 decks
67%synergy
Tekuthal, Inquiry Dominus
68%inclusion13 decks19 decks
66%synergy
Nemata, Primeval Warden
65%inclusion11 decks17 decks
63%synergy
Evolution Sage
63%inclusion12 decks19 decks
57%synergy
Spore Flower
58%inclusion11 decks19 decks
58%synergy
Fungal Plots
58%inclusion11 decks19 decks
57%synergy
Mycoloth
58%inclusion11 decks19 decks
56%synergy
Tendershoot Dryad
58%inclusion11 decks19 decks
56%synergy
Game Changers
Cyclonic Rift
21%inclusion4 decks19 decks
-1%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
58%inclusion11 decks19 decks
55%synergy
Elvish Farmer
53%inclusion10 decks19 decks
53%synergy
Thallid Devourer
47%inclusion9 decks19 decks
47%synergy
Zulaport Cutthroat
41%inclusion7 decks17 decks
33%synergy
Brightcap Badger
40%inclusion6 decks15 decks
39%synergy
Pir, Imaginative Rascal
37%inclusion7 decks19 decks
36%synergy
Cankerbloom
37%inclusion7 decks19 decks
32%synergy
Dreamtide Whale
31%inclusion5 decks16 decks
29%synergy
Pitiless Plunderer
29%inclusion5 decks17 decks
21%synergy
Mirkwood Bats
29%inclusion5 decks17 decks
20%synergy
Blood Artist
29%inclusion5 decks17 decks
18%synergy
Thorn Thallid
26%inclusion5 decks19 decks
26%synergy
Adrix and Nev, Twincasters
26%inclusion5 decks19 decks
22%synergy
Roaming Throne
26%inclusion5 decks19 decks
20%synergy
The Mycotyrant
24%inclusion4 decks17 decks
23%synergy
Nemata, Grove Guardian
21%inclusion4 decks19 decks
21%synergy
Verdeloth the Ancient
21%inclusion4 decks19 decks
21%synergy
Sporecrown Thallid
21%inclusion4 decks19 decks
20%synergy
Sporemound
21%inclusion4 decks19 decks
20%synergy
Danny Pink
21%inclusion4 decks19 decks
20%synergy
Vorinclex, Monstrous Raider
21%inclusion4 decks19 decks
18%synergy
Thrummingbird
21%inclusion4 decks19 decks
18%synergy
Kiora's Follower
21%inclusion4 decks19 decks
16%synergy
Thallid Soothsayer
18%inclusion3 decks17 decks
17%synergy
Scheming Aspirant
18%inclusion3 decks17 decks
17%synergy
Xavier Sal, Infested Captain
18%inclusion3 decks17 decks
17%synergy
Yawgmoth, Thran Physician
18%inclusion3 decks17 decks
14%synergy
Plaguemaw Beast
16%inclusion3 decks19 decks
16%synergy
Undercellar Myconid
16%inclusion3 decks19 decks
15%synergy
Verdant Force
16%inclusion3 decks19 decks
15%synergy
Instants
Ripples of Potential
53%inclusion10 decks19 decks
50%synergy
Assassin's Trophy
41%inclusion7 decks17 decks
11%synergy
Sprout Swarm
37%inclusion7 decks19 decks
36%synergy
Experimental Augury
32%inclusion6 decks19 decks
29%synergy
Serum Snare
26%inclusion5 decks19 decks
26%synergy
Beast Within
26%inclusion5 decks19 decks
-8%synergy
Counterspell
26%inclusion5 decks19 decks
-16%synergy
Atomize
24%inclusion4 decks17 decks
20%synergy
Village Rites
24%inclusion4 decks17 decks
14%synergy
Fuel for the Cause
21%inclusion4 decks19 decks
21%synergy
Heroic Intervention
21%inclusion4 decks19 decks
-9%synergy
Plumb the Forbidden
18%inclusion3 decks17 decks
15%synergy
Steady Progress
16%inclusion3 decks19 decks
15%synergy
Cackling Counterpart
16%inclusion3 decks19 decks
15%synergy
Arcane Denial
16%inclusion3 decks19 decks
-4%synergy
An Offer You Can't Refuse
16%inclusion3 decks19 decks
-9%synergy
Sorceries
Tezzeret's Gambit
47%inclusion9 decks19 decks
44%synergy
Farseek
47%inclusion9 decks19 decks
11%synergy
Unnatural Restoration
37%inclusion7 decks19 decks
34%synergy
Three Visits
32%inclusion6 decks19 decks
7%synergy
Nature's Lore
32%inclusion6 decks19 decks
0%synergy
Saproling Symbiosis
26%inclusion5 decks19 decks
26%synergy
Rampant Growth
26%inclusion5 decks19 decks
-7%synergy
Cultivate
26%inclusion5 decks19 decks
-16%synergy
Contentious Plan
16%inclusion3 decks19 decks
14%synergy
Overwhelming Stampede
16%inclusion3 decks19 decks
11%synergy
Utility Artifacts
Phyrexian Altar
32%inclusion6 decks19 decks
28%synergy
Lightning Greaves
26%inclusion5 decks19 decks
2%synergy
Swiftfoot Boots
26%inclusion5 decks19 decks
-1%synergy
Contagion Engine
21%inclusion4 decks19 decks
20%synergy
Thousand-Year Elixir
21%inclusion4 decks19 decks
19%synergy
The Ozolith
21%inclusion4 decks19 decks
18%synergy
Enchantments
Intruder Alarm
42%inclusion8 decks19 decks
40%synergy
Fungal Bloom
37%inclusion7 decks19 decks
37%synergy
Inexorable Tide
37%inclusion7 decks19 decks
34%synergy
Parallel Lives
32%inclusion6 decks19 decks
25%synergy
Paradox Haze
26%inclusion5 decks19 decks
25%synergy
Primal Vigor
26%inclusion5 decks19 decks
23%synergy
Cryptolith Rite
26%inclusion5 decks19 decks
22%synergy
Growing Rites of Itlimoc
26%inclusion5 decks19 decks
21%synergy
Bastion of Remembrance
24%inclusion4 decks17 decks
17%synergy
Moldervine Reclamation
24%inclusion4 decks17 decks
17%synergy
Innkeeper's Talent
20%inclusion3 decks15 decks
16%synergy
Necrogenesis
18%inclusion3 decks17 decks
17%synergy
Golgari Germination
18%inclusion3 decks17 decks
17%synergy
Evolutionary Leap
16%inclusion3 decks19 decks
15%synergy
Freed from the Real
16%inclusion3 decks19 decks
14%synergy
Planeswalkers
Vraska, Betrayal's Sting
24%inclusion4 decks17 decks
21%synergy
Tyvar, Jubilant Brawler
18%inclusion3 decks17 decks
14%synergy
Utility Lands
Karn's Bastion
47%inclusion9 decks19 decks
43%synergy
Nesting Grounds
32%inclusion6 decks19 decks
29%synergy
Oran-Rief, the Vastwood
26%inclusion5 decks19 decks
22%synergy
Yavimaya, Cradle of Growth
26%inclusion5 decks19 decks
18%synergy
Hickory Woodlot
21%inclusion4 decks19 decks
21%synergy
Reliquary Tower
21%inclusion4 decks19 decks
-9%synergy
Three Tree City
20%inclusion3 decks15 decks
15%synergy
Peat Bog
18%inclusion3 decks17 decks
17%synergy
Grim Backwoods
18%inclusion3 decks17 decks
14%synergy
Saprazzan Skerry
16%inclusion3 decks19 decks
15%synergy
Urborg, Tomb of Yawgmoth
16%inclusion3 decks19 decks
7%synergy
Boseiju, Who Endures
16%inclusion3 decks19 decks
-3%synergy
Mana Artifacts
Sol Ring
89%inclusion17 decks19 decks
6%synergy
Arcane Signet
42%inclusion8 decks19 decks
-30%synergy
Talisman of Resilience
24%inclusion4 decks17 decks
11%synergy
Staff of Compleation
21%inclusion4 decks19 decks
20%synergy
Everflowing Chalice
21%inclusion4 decks19 decks
17%synergy
Talisman of Curiosity
21%inclusion4 decks19 decks
8%synergy
Astral Cornucopia
16%inclusion3 decks19 decks
15%synergy
Replicating Ring
16%inclusion3 decks19 decks
15%synergy
Lands
Command Tower
89%inclusion17 decks19 decks
15%synergy
Temple Garden
80%inclusion4 decks5 decks
41%synergy
Exotic Orchard
63%inclusion12 decks19 decks
27%synergy
Spara's Headquarters
60%inclusion3 decks5 decks
32%synergy
Zagoth Triome
53%inclusion9 decks17 decks
25%synergy
Woodland Cemetery
53%inclusion9 decks17 decks
21%synergy
Hinterland Harbor
47%inclusion9 decks19 decks
14%synergy
Breeding Pool
47%inclusion9 decks19 decks
5%synergy
Overgrown Tomb
47%inclusion8 decks17 decks
6%synergy
Fabled Passage
42%inclusion8 decks19 decks
33%synergy
Rejuvenating Springs
42%inclusion8 decks19 decks
16%synergy
Yavimaya Coast
42%inclusion8 decks19 decks
15%synergy
Undergrowth Stadium
41%inclusion7 decks17 decks
18%synergy
Llanowar Wastes
41%inclusion7 decks17 decks
14%synergy
Evolving Wilds
37%inclusion7 decks19 decks
16%synergy
Deathcap Glade
35%inclusion6 decks17 decks
22%synergy
Terramorphic Expanse
32%inclusion6 decks19 decks
17%synergy
Dreamroot Cascade
32%inclusion6 decks19 decks
10%synergy
Foreboding Landscape
31%inclusion4 decks13 decks
22%synergy
Darkbore Pathway
29%inclusion5 decks17 decks
23%synergy
Drowned Catacomb
29%inclusion5 decks17 decks
0%synergy
Watery Grave
29%inclusion5 decks17 decks
-12%synergy
Path of Ancestry
26%inclusion5 decks19 decks
4%synergy
Underground Mortuary
24%inclusion4 decks17 decks
11%synergy
Underground River
24%inclusion4 decks17 decks
1%synergy
Morphic Pool
24%inclusion4 decks17 decks
-1%synergy
Temple of Mystery
21%inclusion4 decks19 decks
4%synergy
Vivid Marsh
18%inclusion3 decks17 decks
17%synergy
Clearwater Pathway
18%inclusion3 decks17 decks
10%synergy
Twilight Mire
18%inclusion3 decks17 decks
4%synergy
Shipwreck Marsh
18%inclusion3 decks17 decks
0%synergy
Opulent Palace
18%inclusion3 decks17 decks
-11%synergy
Sunken Hollow
18%inclusion3 decks17 decks
-16%synergy
Vivid Creek
16%inclusion3 decks19 decks
15%synergy
Vivid Grove
16%inclusion3 decks19 decks
15%synergy
Reflecting Pool
16%inclusion3 decks19 decks
11%synergy
Barkchannel Pathway
16%inclusion3 decks19 decks
9%synergy
Mana Confluence
16%inclusion3 decks19 decks
9%synergy
Overflowing Basin
16%inclusion3 decks19 decks
8%synergy
Verdant Catacombs
16%inclusion3 decks19 decks
5%synergy
Hedge Maze
16%inclusion3 decks19 decks
5%synergy
Misty Rainforest
16%inclusion3 decks19 decks
4%synergy
Flooded Grove
16%inclusion3 decks19 decks
0%synergy