Phyrexian Altar
Doubling Season

   Prerequisites

What do I need to start this combo?
Prossh in the command zone.
Phyrexian Altar and Doubling Season on the battlefield.
Prossh must be your commander.
3 plus enough mana to pay for commander tax, if applicable available

   Steps

How does this combo work?
1
Cast Prossh from the command zone by paying 3 and commander tax, if applicable.
2
Prossh triggers, creating a number of 0/1 Kobolds of Kher Keep creature tokens equal to twice the amount of mana spent to cast Prossh.
3
Activate Phyrexian Altar three times by sacrificing Prossh and two Kobolds, adding .
4
Choose to return Prossh to the command zone from your graveyard.
5
Activate Phyrexian Altar by sacrificing a Kobold, adding 1.
6
Repeat step 5 until you have enough mana to cast Prossh.
7
Repeat from step 1.

   Results

What do I get from this combo?
Infinite colored mana
Infinite commander casts
Infinite creature tokens
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Prossh, Skyraider of Kher
10%inclusion648 decks6.24K decks
New Cards
Hexing Squelcher
11%inclusion6 decks54 decks
2%synergy
Springleaf Parade
5.6%inclusion3 decks54 decks
5%synergy
Grave Venerations
3.7%inclusion2 decks54 decks
-15%synergy
Ninja Teen
3.3%inclusion1 decks30 decks
3%synergy
Bitterbloom Bearer
1.9%inclusion3 decks158 decks
1%synergy
High Synergy Cards
Purphoros, God of the Forge
78%inclusion505 decks648 decks
75%synergy
Ashnod's Altar
85%inclusion554 decks648 decks
74%synergy
Impact Tremors
79%inclusion514 decks648 decks
73%synergy
Parallel Lives
78%inclusion506 decks648 decks
72%synergy
Skullclamp
84%inclusion544 decks648 decks
69%synergy
Zulaport Cutthroat
77%inclusion502 decks648 decks
68%synergy
Chatterfang, Squirrel General
74%inclusion479 decks648 decks
65%synergy
Goblin Bombardment
74%inclusion482 decks648 decks
64%synergy
Blood Artist
72%inclusion469 decks648 decks
63%synergy
Food Chain
66%inclusion426 decks648 decks
62%synergy
Top Cards
Pitiless Plunderer
75%inclusion485 decks648 decks
62%synergy
Ignoble Hierarch
70%inclusion454 decks648 decks
15%synergy
Mayhem Devil
65%inclusion418 decks648 decks
38%synergy
Mirkwood Bats
64%inclusion416 decks648 decks
52%synergy
Birds of Paradise
62%inclusion401 decks648 decks
30%synergy
Korvold, Fae-Cursed King
61%inclusion397 decks648 decks
42%synergy
Fecundity
58%inclusion373 decks648 decks
55%synergy
Sakura-Tribe Elder
57%inclusion371 decks648 decks
25%synergy
Assassin's Trophy
55%inclusion358 decks648 decks
12%synergy
Farseek
55%inclusion354 decks648 decks
6%synergy
Game Changers
Demonic Tutor
47%inclusion307 decks648 decks
31%synergy
Vampiric Tutor
33%inclusion213 decks648 decks
21%synergy
Worldly Tutor
23%inclusion152 decks648 decks
13%synergy
Ancient Tomb
21%inclusion133 decks648 decks
13%synergy
Gaea's Cradle
15%inclusion99 decks648 decks
12%synergy
Mana Vault
13%inclusion82 decks648 decks
9%synergy
Orcish Bowmasters
13%inclusion82 decks648 decks
6%synergy
Jeska's Will
12%inclusion76 decks648 decks
5%synergy
Necropotence
8.0%inclusion52 decks648 decks
5%synergy
Bolas's Citadel
7.7%inclusion50 decks648 decks
5%synergy
Creatures
Viscera Seer
43%inclusion280 decks648 decks
33%synergy
Eternal Witness
42%inclusion274 decks648 decks
16%synergy
Warren Soultrader
41%inclusion239 decks588 decks
32%synergy
Avenger of Zendikar
39%inclusion254 decks648 decks
30%synergy
Mahadi, Emporium Master
39%inclusion253 decks648 decks
29%synergy
Poison-Tip Archer
36%inclusion232 decks648 decks
33%synergy
Endrek Sahr, Master Breeder
35%inclusion226 decks648 decks
33%synergy
Craterhoof Behemoth
33%inclusion216 decks648 decks
30%synergy
Agate Instigator
32%inclusion177 decks551 decks
31%synergy
Marionette Apprentice
31%inclusion185 decks588 decks
26%synergy
Squee, the Immortal
29%inclusion189 decks648 decks
25%synergy
Enduring Vitality
29%inclusion146 decks504 decks
26%synergy
Llanowar Elves
29%inclusion187 decks648 decks
15%synergy
Ophiomancer
29%inclusion186 decks648 decks
26%synergy
Sephiroth, Fabled SOLDIER
26%inclusion77 decks293 decks
23%synergy
Mycoloth
26%inclusion170 decks648 decks
22%synergy
Smothering Abomination
25%inclusion159 decks648 decks
23%synergy
Delighted Halfling
24%inclusion158 decks648 decks
12%synergy
Witty Roastmaster
24%inclusion153 decks648 decks
23%synergy
Garna, Bloodfist of Keld
23%inclusion151 decks648 decks
21%synergy
Elvish Mystic
23%inclusion146 decks648 decks
14%synergy
Goblin Sharpshooter
22%inclusion145 decks648 decks
21%synergy
Yawgmoth, Thran Physician
20%inclusion132 decks648 decks
16%synergy
Juri, Master of the Revue
20%inclusion129 decks648 decks
7%synergy
Anger
20%inclusion129 decks648 decks
2%synergy
Syr Konrad, the Grim
19%inclusion121 decks648 decks
8%synergy
Enduring Courage
19%inclusion94 decks506 decks
15%synergy
Elves of Deep Shadow
18%inclusion117 decks648 decks
9%synergy
Deathrite Shaman
17%inclusion113 decks648 decks
6%synergy
Dragon Broodmother
17%inclusion112 decks648 decks
15%synergy
Butcher of Malakir
17%inclusion111 decks648 decks
13%synergy
Devilish Valet
17%inclusion107 decks648 decks
16%synergy
Lagomos, Hand of Hatred
16%inclusion105 decks648 decks
13%synergy
Xenagos, God of Revels
16%inclusion101 decks648 decks
9%synergy
Beledros Witherbloom
15%inclusion100 decks648 decks
12%synergy
Sprouting Thrinax
15%inclusion99 decks648 decks
12%synergy
Mazirek, Kraul Death Priest
15%inclusion96 decks648 decks
2%synergy
Molten Gatekeeper
15%inclusion85 decks586 decks
14%synergy
Solemn Simulacrum
13%inclusion87 decks648 decks
-1%synergy
Fyndhorn Elves
13%inclusion84 decks648 decks
8%synergy
Tendershoot Dryad
13%inclusion83 decks648 decks
9%synergy
Wood Elves
13%inclusion81 decks648 decks
9%synergy
Reclamation Sage
12%inclusion80 decks648 decks
8%synergy
Deathbringer Thoctar
12%inclusion78 decks648 decks
11%synergy
Ziatora, the Incinerator
11%inclusion74 decks648 decks
-3%synergy
Compy Swarm
10%inclusion68 decks648 decks
9%synergy
Bloom Tender
10%inclusion68 decks648 decks
4%synergy
Braids, Arisen Nightmare
10%inclusion68 decks648 decks
-7%synergy
Scute Swarm
10%inclusion67 decks648 decks
-2%synergy
Ogre Battledriver
10%inclusion65 decks648 decks
9%synergy
Instants
Beast Within
51%inclusion331 decks648 decks
10%synergy
Heroic Intervention
37%inclusion242 decks648 decks
11%synergy
Artifact Mutation
32%inclusion208 decks648 decks
26%synergy
Chaos Warp
30%inclusion197 decks648 decks
6%synergy
Dark Ritual
28%inclusion182 decks648 decks
15%synergy
Village Rites
27%inclusion176 decks648 decks
18%synergy
Deflecting Swat
26%inclusion168 decks648 decks
10%synergy
Terminate
25%inclusion163 decks648 decks
-2%synergy
Deadly Dispute
20%inclusion132 decks648 decks
6%synergy
Putrefy
19%inclusion126 decks648 decks
-2%synergy
Abrupt Decay
18%inclusion116 decks648 decks
6%synergy
Plumb the Forbidden
18%inclusion114 decks648 decks
16%synergy
Deadly Rollick
15%inclusion98 decks648 decks
3%synergy
Krosan Grip
15%inclusion94 decks648 decks
10%synergy
Second Harvest
14%inclusion91 decks648 decks
12%synergy
Chord of Calling
13%inclusion85 decks648 decks
11%synergy
Nature's Claim
11%inclusion73 decks648 decks
5%synergy
Tear Asunder
10%inclusion64 decks648 decks
-3%synergy
Return of the Wildspeaker
9.4%inclusion61 decks648 decks
3%synergy
Veil of Summer
8.8%inclusion57 decks648 decks
3%synergy
Tragic Slip
8.6%inclusion56 decks648 decks
7%synergy
Red Elemental Blast
8.6%inclusion56 decks648 decks
3%synergy
Pyroblast
8.5%inclusion55 decks648 decks
3%synergy
Corrupted Conviction
8.3%inclusion54 decks648 decks
4%synergy
Fresh Meat
8.0%inclusion52 decks648 decks
8%synergy
Bedevil
7.9%inclusion51 decks648 decks
1%synergy
Crop Rotation
7.9%inclusion51 decks648 decks
-6%synergy
Harrow
7.3%inclusion47 decks648 decks
-13%synergy
Tainted Strike
7.1%inclusion46 decks648 decks
5%synergy
Culling the Weak
6.8%inclusion44 decks648 decks
3%synergy
Fling
6.3%inclusion41 decks648 decks
1%synergy
Blood for the Blood God!
6.2%inclusion40 decks648 decks
5%synergy
Noxious Revival
6.0%inclusion39 decks648 decks
0%synergy
Arachnogenesis
5.7%inclusion37 decks648 decks
3%synergy
Fell the Profane
5.6%inclusion33 decks588 decks
-1%synergy
Body Count
5.1%inclusion33 decks648 decks
5%synergy
Sorceries
Cultivate
52%inclusion336 decks648 decks
10%synergy
Nature's Lore
51%inclusion331 decks648 decks
13%synergy
Three Visits
44%inclusion283 decks648 decks
19%synergy
Diabolic Intent
40%inclusion261 decks648 decks
31%synergy
Kodama's Reach
39%inclusion250 decks648 decks
15%synergy
Blasphemous Act
37%inclusion240 decks648 decks
-4%synergy
Toxic Deluge
30%inclusion195 decks648 decks
14%synergy
Rampant Growth
29%inclusion191 decks648 decks
-3%synergy
Skyshroud Claim
19%inclusion120 decks648 decks
9%synergy
Tempt with Vengeance
18%inclusion119 decks648 decks
17%synergy
Victimize
18%inclusion119 decks648 decks
-2%synergy
Damnation
17%inclusion112 decks648 decks
11%synergy
Song of Totentanz
17%inclusion107 decks648 decks
15%synergy
Blasphemous Edict
14%inclusion66 decks459 decks
8%synergy
Vandalblast
14%inclusion88 decks648 decks
4%synergy
Bala Ged Recovery
11%inclusion73 decks648 decks
2%synergy
Reanimate
11%inclusion72 decks648 decks
-11%synergy
Shamanic Revelation
11%inclusion70 decks648 decks
9%synergy
Grim Tutor
11%inclusion70 decks648 decks
8%synergy
Culling Ritual
11%inclusion69 decks648 decks
-1%synergy
Finale of Devastation
10%inclusion66 decks648 decks
6%synergy
Green Sun's Zenith
10%inclusion62 decks648 decks
6%synergy
Crux of Fate
8.3%inclusion54 decks648 decks
6%synergy
Pest Infestation
8.3%inclusion54 decks648 decks
3%synergy
Chandra's Ignition
8.3%inclusion54 decks648 decks
-4%synergy
Diabolic Tutor
8.0%inclusion52 decks648 decks
5%synergy
Decimate
7.1%inclusion46 decks648 decks
1%synergy
Tooth and Nail
6.9%inclusion45 decks648 decks
6%synergy
Awaken the Woods
6.5%inclusion42 decks648 decks
5%synergy
Overwhelming Stampede
6.3%inclusion41 decks648 decks
5%synergy
Rishkar's Expertise
6.2%inclusion40 decks648 decks
-2%synergy
Imperial Seal
5.6%inclusion36 decks648 decks
2%synergy
Hull Breach
5.4%inclusion35 decks648 decks
3%synergy
Torment of Hailfire
5.4%inclusion35 decks648 decks
0%synergy
Descent of the Dragons
5.1%inclusion33 decks648 decks
5%synergy
Utility Artifacts
Lightning Greaves
41%inclusion264 decks648 decks
17%synergy
Swiftfoot Boots
24%inclusion158 decks648 decks
2%synergy
The One Ring
8.2%inclusion53 decks648 decks
3%synergy
Tarrian's Soulcleaver
7.6%inclusion49 decks648 decks
5%synergy
Sensei's Divining Top
6.8%inclusion44 decks648 decks
5%synergy
Enchantments
Dictate of Erebos
48%inclusion310 decks648 decks
43%synergy
Bastion of Remembrance
48%inclusion309 decks648 decks
43%synergy
Moldervine Reclamation
45%inclusion290 decks648 decks
37%synergy
Cryptolith Rite
39%inclusion254 decks648 decks
37%synergy
Beastmaster Ascension
36%inclusion234 decks648 decks
34%synergy
Grave Pact
31%inclusion204 decks648 decks
28%synergy
The Meathook Massacre
29%inclusion189 decks648 decks
26%synergy
Sylvan Library
29%inclusion188 decks648 decks
21%synergy
Rhythm of the Wild
25%inclusion161 decks648 decks
6%synergy
Awakening Zone
22%inclusion144 decks648 decks
18%synergy
Growing Rites of Itlimoc
22%inclusion143 decks648 decks
20%synergy
Primal Vigor
21%inclusion134 decks648 decks
18%synergy
Insidious Roots
17%inclusion109 decks648 decks
13%synergy
Phyrexian Arena
17%inclusion108 decks648 decks
8%synergy
Bitterblossom
14%inclusion93 decks648 decks
12%synergy
Black Market Connections
11%inclusion74 decks648 decks
4%synergy
Shared Animosity
11%inclusion72 decks648 decks
10%synergy
Black Market
11%inclusion70 decks648 decks
9%synergy
Earthcraft
8.6%inclusion56 decks648 decks
8%synergy
Greater Good
8.3%inclusion54 decks648 decks
-5%synergy
Funeral Room // Awakening Hall
8.2%inclusion42 decks512 decks
7%synergy
Fires of Yavimaya
7.7%inclusion50 decks648 decks
5%synergy
City on Fire
6.0%inclusion39 decks648 decks
4%synergy
Deathreap Ritual
5.7%inclusion37 decks648 decks
-3%synergy
Planeswalkers
Xenagos, the Reveler
34%inclusion222 decks648 decks
33%synergy
Liliana, Dreadhorde General
18%inclusion117 decks648 decks
15%synergy
Tevesh Szat, Doom of Fools
6.6%inclusion43 decks648 decks
6%synergy
Sarkhan Vol
5.4%inclusion35 decks648 decks
5%synergy
Garruk Wildspeaker
5.1%inclusion33 decks648 decks
5%synergy
Utility Lands
Phyrexian Tower
51%inclusion329 decks648 decks
41%synergy
Kher Keep
49%inclusion316 decks648 decks
46%synergy
Urborg, Tomb of Yawgmoth
46%inclusion296 decks648 decks
27%synergy
Yavimaya, Cradle of Growth
41%inclusion267 decks648 decks
20%synergy
Bojuka Bog
33%inclusion216 decks648 decks
1%synergy
Reliquary Tower
32%inclusion205 decks648 decks
12%synergy
Kessig Wolf Run
31%inclusion202 decks648 decks
12%synergy
Boseiju, Who Endures
29%inclusion186 decks648 decks
9%synergy
Rogue's Passage
21%inclusion136 decks648 decks
7%synergy
Temple of the False God
17%inclusion110 decks648 decks
10%synergy
Westvale Abbey
15%inclusion100 decks648 decks
14%synergy
Cabal Coffers
15%inclusion96 decks648 decks
10%synergy
Field of the Dead
13%inclusion83 decks648 decks
5%synergy
Khalni Garden
11%inclusion69 decks648 decks
9%synergy
Evendo, Waking Haven
10%inclusion23 decks230 decks
6%synergy
High Market
9.1%inclusion59 decks648 decks
5%synergy
Dryad Arbor
8.3%inclusion54 decks648 decks
5%synergy
Takenuma, Abandoned Mire
8.0%inclusion52 decks648 decks
-2%synergy
Grim Backwoods
6.8%inclusion44 decks648 decks
5%synergy
Sokenzan, Crucible of Defiance
6.6%inclusion43 decks648 decks
5%synergy
Three Tree City
6.5%inclusion36 decks557 decks
5%synergy
Shifting Woodland
6.0%inclusion35 decks588 decks
-6%synergy
Urza's Saga
5.9%inclusion38 decks648 decks
1%synergy
Strip Mine
5.9%inclusion38 decks648 decks
-1%synergy
Shizo, Death's Storehouse
5.7%inclusion37 decks648 decks
4%synergy
Arena of Glory
5.1%inclusion30 decks586 decks
1%synergy
Mana Artifacts
Sol Ring
92%inclusion594 decks648 decks
10%synergy
Arcane Signet
74%inclusion482 decks648 decks
5%synergy
Golgari Signet
16%inclusion106 decks648 decks
7%synergy
Chromatic Lantern
15%inclusion99 decks648 decks
9%synergy
Rakdos Signet
14%inclusion90 decks648 decks
5%synergy
Gruul Signet
14%inclusion90 decks648 decks
5%synergy
Fellwar Stone
14%inclusion89 decks648 decks
1%synergy
Talisman of Resilience
13%inclusion87 decks648 decks
-1%synergy
Talisman of Indulgence
11%inclusion71 decks648 decks
-1%synergy
Talisman of Impulse
11%inclusion70 decks648 decks
-1%synergy
Lotus Petal
8.3%inclusion54 decks648 decks
3%synergy
Chrome Mox
7.6%inclusion49 decks648 decks
3%synergy
Commander's Sphere
7.1%inclusion46 decks648 decks
-2%synergy
Mana Crypt
5.4%inclusion35 decks648 decks
4%synergy
Lands
Command Tower
95%inclusion613 decks648 decks
4%synergy
Stomping Ground
80%inclusion516 decks648 decks
30%synergy
Overgrown Tomb
79%inclusion509 decks648 decks
31%synergy
Blood Crypt
77%inclusion498 decks648 decks
32%synergy
Ziatora's Proving Ground
68%inclusion438 decks648 decks
21%synergy
Bloodstained Mire
60%inclusion386 decks648 decks
23%synergy
Wooded Foothills
59%inclusion380 decks648 decks
22%synergy
Verdant Catacombs
57%inclusion369 decks648 decks
21%synergy
Undergrowth Stadium
48%inclusion308 decks648 decks
18%synergy
Dragonskull Summit
48%inclusion308 decks648 decks
15%synergy
Spire Garden
47%inclusion306 decks648 decks
20%synergy
Rootbound Crag
47%inclusion305 decks648 decks
16%synergy
Woodland Cemetery
46%inclusion300 decks648 decks
12%synergy
Luxury Suite
46%inclusion298 decks648 decks
19%synergy
Savage Lands
42%inclusion271 decks648 decks
-2%synergy
Exotic Orchard
39%inclusion251 decks648 decks
-9%synergy
Cinder Glade
33%inclusion211 decks648 decks
-17%synergy
Smoldering Marsh
28%inclusion184 decks648 decks
-18%synergy
Llanowar Wastes
25%inclusion165 decks648 decks
-3%synergy
Taiga
23%inclusion147 decks648 decks
10%synergy
Rockfall Vale
23%inclusion147 decks648 decks
0%synergy
Badlands
23%inclusion146 decks648 decks
10%synergy
Bayou
23%inclusion146 decks648 decks
10%synergy
Haunted Ridge
19%inclusion121 decks648 decks
5%synergy
City of Brass
19%inclusion120 decks648 decks
11%synergy
Deathcap Glade
18%inclusion119 decks648 decks
4%synergy
Karplusan Forest
17%inclusion112 decks648 decks
-6%synergy
Sulfurous Springs
17%inclusion107 decks648 decks
-5%synergy
Evolving Wilds
16%inclusion104 decks648 decks
-18%synergy
Underground Mortuary
16%inclusion102 decks648 decks
-1%synergy
Mana Confluence
15%inclusion95 decks648 decks
8%synergy
Fabled Passage
15%inclusion94 decks648 decks
-9%synergy
Commercial District
14%inclusion89 decks648 decks
-3%synergy
Twilight Mire
13%inclusion87 decks648 decks
-1%synergy
Raucous Theater
13%inclusion87 decks648 decks
-2%synergy
Windswept Heath
13%inclusion85 decks648 decks
2%synergy
Terramorphic Expanse
13%inclusion83 decks648 decks
-16%synergy
Reflecting Pool
13%inclusion81 decks648 decks
8%synergy
Misty Rainforest
11%inclusion74 decks648 decks
1%synergy
Golgari Rot Farm
11%inclusion74 decks648 decks
-2%synergy
Polluted Delta
11%inclusion73 decks648 decks
2%synergy
Twisted Landscape
10%inclusion61 decks586 decks
-14%synergy
Arid Mesa
10%inclusion67 decks648 decks
1%synergy
Marsh Flats
10%inclusion67 decks648 decks
1%synergy
Graven Cairns
9.1%inclusion59 decks648 decks
5%synergy
Blightstep Pathway
9.0%inclusion58 decks648 decks
4%synergy
Scalding Tarn
8.6%inclusion56 decks648 decks
0%synergy
Darkbore Pathway
8.5%inclusion55 decks648 decks
3%synergy
Thornspire Verge
8.0%inclusion41 decks512 decks
0%synergy
Temple of Malady
7.3%inclusion47 decks648 decks
-6%synergy