Phyrexian Altar + Doubling Season
Phyrexian Altar
Doubling Season
Requires
Prossh, Skyraider of Kher must be in the command zone.
Phyrexian Altar must be on the battlefield.
Doubling Season must be on the battlefield.
Prossh, Skyraider of Kher must be your commander.
Mana needed: 
plus enough mana to pay for commander tax, if applicable
plus enough mana to pay for commander tax, if applicable
Steps
- Cast Prossh from the command zone by paying and commander tax, if applicable.
- 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.
- Activate Phyrexian Altar three times by sacrificing Prossh and two Kobolds, adding .
- Choose to return Prossh to the command zone from your graveyard.
- Activate Phyrexian Altar by sacrificing a Kobold, adding
. - Repeat step 5 until you have enough mana to cast Prossh.
- Repeat from step 1.
Results
Infinite colored mana. Infinite commander casts. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
Top Commanders (1)
Prossh, Skyraider of Kher
10.76% of 4342 decks
467 decks
High Synergy Cards (10)
Purphoros, God of the Forge
83% of 467 decks
+78% synergy
Impact Tremors
80% of 466 decks
+72% synergy
Parallel Lives
79% of 467 decks
+71% synergy
Zulaport Cutthroat
81% of 466 decks
+66% synergy
Goblin Bombardment
80% of 467 decks
+64% synergy
Chatterfang, Squirrel General
74% of 447 decks
+62% synergy
Blood Artist
73% of 467 decks
+60% synergy
Food Chain
62% of 467 decks
+57% synergy
Mirkwood Bats
83% of 212 decks
+57% synergy
Pitiless Plunderer
72% of 464 decks
+54% synergy
Top Cards (10)
Ashnod's Altar
88% of 467 decks
+71% synergy
Skullclamp
85% of 467 decks
+64% synergy
Ignoble Hierarch
69% of 444 decks
+16% synergy
Birds of Paradise
61% of 467 decks
+28% synergy
Assassin's Trophy
60% of 463 decks
+22% synergy
Mayhem Devil
59% of 462 decks
+31% synergy
Korvold, Fae-Cursed King
58% of 459 decks
+45% synergy
Sakura-Tribe Elder
56% of 467 decks
+16% synergy
Beast Within
55% of 467 decks
+10% synergy
Farseek
55% of 467 decks
+8% synergy
Creatures (50)
Compy Swarm
54% of 84 decks
+48% synergy
Eternal Witness
49% of 467 decks
+17% synergy
Mahadi, Emporium Master
46% of 371 decks
+29% synergy
Viscera Seer
45% of 467 decks
+27% synergy
Craterhoof Behemoth
42% of 467 decks
+39% synergy
Avenger of Zendikar
41% of 467 decks
+24% synergy
Delighted Halfling
37% of 226 decks
+21% synergy
Poison-Tip Archer
37% of 463 decks
+31% synergy
Garna, Bloodfist of Keld
35% of 329 decks
+31% synergy
Dockside Extortionist
35% of 459 decks
+14% synergy
Smothering Abomination
34% of 466 decks
+30% synergy
Llanowar Elves
30% of 467 decks
+12% synergy
Squee, the Immortal
29% of 463 decks
+21% synergy
Mycoloth
28% of 467 decks
+22% synergy
Endrek Sahr, Master Breeder
28% of 467 decks
+25% synergy
Witty Roastmaster
27% of 418 decks
+25% synergy
Ophiomancer
26% of 467 decks
+23% synergy
Yawgmoth, Thran Physician
24% of 459 decks
+20% synergy
Lagomos, Hand of Hatred
24% of 337 decks
+18% synergy
Xenagos, God of Revels
24% of 467 decks
+17% synergy
Elvish Mystic
24% of 467 decks
+12% synergy
Goblin Sharpshooter
23% of 467 decks
+21% synergy
Elves of Deep Shadow
22% of 467 decks
+8% synergy
Anger
21% of 467 decks
+7% synergy
Deathrite Shaman
21% of 467 decks
+7% synergy
Dragon Broodmother
20% of 467 decks
+17% synergy
Ogre Battledriver
20% of 467 decks
+18% synergy
Wood Elves
19% of 467 decks
+11% synergy
Mazirek, Kraul Death Priest
19% of 465 decks
+9% synergy
Tendershoot Dryad
18% of 464 decks
+13% synergy
Beledros Witherbloom
18% of 447 decks
+14% synergy
Sprouting Thrinax
17% of 467 decks
+11% synergy
Butcher of Malakir
17% of 467 decks
+11% synergy
Devilish Valet
17% of 421 decks
+15% synergy
Syr Konrad, the Grim
16% of 456 decks
+9% synergy
Juri, Master of the Revue
16% of 447 decks
+2% synergy
Drivnod, Carnage Dominus
16% of 264 decks
+8% synergy
Fyndhorn Elves
16% of 467 decks
+7% synergy
Reclamation Sage
16% of 467 decks
+6% synergy
Deathbringer Thoctar
14% of 467 decks
+12% synergy
Vexing Shusher
14% of 467 decks
+9% synergy
Solemn Simulacrum
13% of 467 decks
-9% synergy
Orcish Bowmasters
13% of 212 decks
+3% synergy
Braids, Arisen Nightmare
13% of 346 decks
-6% synergy
Dragonlair Spider
13% of 467 decks
+9% synergy
Scute Swarm
12% of 449 decks
+0% synergy
Ziatora, the Incinerator
12% of 418 decks
-8% synergy
Imperial Recruiter
12% of 467 decks
+8% synergy
Bloom Tender
12% of 467 decks
+5% synergy
Ravenous Tyrannosaurus
11% of 84 decks
+8% synergy
Instants (38)
Vampiric Tutor
42% of 467 decks
+25% synergy
Heroic Intervention
38% of 464 decks
+13% synergy
Chaos Warp
30% of 467 decks
-2% synergy
Worldly Tutor
27% of 467 decks
+14% synergy
Artifact Mutation
27% of 467 decks
+18% synergy
Terminate
26% of 467 decks
-2% synergy
Village Rites
24% of 449 decks
+10% synergy
Deflecting Swat
22% of 449 decks
+7% synergy
Plumb the Forbidden
21% of 447 decks
+17% synergy
Putrefy
18% of 467 decks
+0% synergy
Krosan Grip
17% of 467 decks
+8% synergy
Abrupt Decay
17% of 467 decks
+4% synergy
Chord of Calling
16% of 467 decks
+14% synergy
Nature's Claim
16% of 467 decks
+4% synergy
Dark Ritual
16% of 467 decks
+5% synergy
Deadly Dispute
15% of 438 decks
-5% synergy
Second Harvest
15% of 465 decks
+12% synergy
Blood for the Blood God!
15% of 309 decks
+12% synergy
Corrupted Conviction
13% of 236 decks
+5% synergy
Deadly Rollick
13% of 449 decks
+4% synergy
Return of the Wildspeaker
12% of 456 decks
+3% synergy
Veil of Summer
12% of 459 decks
+4% synergy
Tear Asunder
11% of 332 decks
+2% synergy
Tainted Strike
10% of 467 decks
+7% synergy
Archdruid's Charm
10% of 42 decks
+4% synergy
Pyroblast
9% of 467 decks
+2% synergy
Crop Rotation
9% of 467 decks
-7% synergy
Fresh Meat
8% of 467 decks
+8% synergy
Noxious Revival
8% of 467 decks
+1% synergy
Red Elemental Blast
8% of 467 decks
+1% synergy
Tragic Slip
8% of 467 decks
+5% synergy
Bedevil
8% of 462 decks
-3% synergy
Harrow
7% of 467 decks
-12% synergy
Body Count
6% of 418 decks
+6% synergy
Rakdos Charm
6% of 467 decks
-2% synergy
Tend the Pests
6% of 447 decks
+4% synergy
Arachnogenesis
6% of 465 decks
+3% synergy
Malakir Rebirth
5% of 449 decks
-7% synergy
Sorceries (42)
Demonic Tutor
57% of 467 decks
+35% synergy
Cultivate
54% of 467 decks
+7% synergy
Diabolic Intent
46% of 467 decks
+33% synergy
Nature's Lore
44% of 467 decks
+10% synergy
Three Visits
41% of 467 decks
+14% synergy
Kodama's Reach
41% of 467 decks
+6% synergy
Blasphemous Act
37% of 467 decks
-6% synergy
Song of Totentanz
35% of 116 decks
+30% synergy
Damnation
29% of 467 decks
+19% synergy
Toxic Deluge
27% of 467 decks
+13% synergy
Rampant Growth
27% of 467 decks
-10% synergy
Skyshroud Claim
23% of 467 decks
+15% synergy
Beseech the Mirror
17% of 133 decks
+12% synergy
Awaken the Woods
17% of 295 decks
+13% synergy
Tempt with Vengeance
16% of 467 decks
+15% synergy
Grim Tutor
16% of 467 decks
+12% synergy
Vandalblast
16% of 467 decks
+4% synergy
Bala Ged Recovery
13% of 449 decks
+1% synergy
Green Sun's Zenith
13% of 467 decks
+8% synergy
Victimize
13% of 467 decks
-13% synergy
Finale of Devastation
12% of 462 decks
+5% synergy
Shamanic Revelation
12% of 466 decks
+9% synergy
Jeska's Will
11% of 447 decks
+1% synergy
Crux of Fate
11% of 466 decks
+5% synergy
Pest Infestation
11% of 447 decks
+9% synergy
Culling Ritual
10% of 447 decks
-2% synergy
Triumph of the Hordes
10% of 467 decks
+9% synergy
Diabolic Tutor
10% of 467 decks
+5% synergy
Reanimate
9% of 467 decks
-7% synergy
Decimate
9% of 467 decks
-1% synergy
Maelstrom Pulse
9% of 467 decks
+7% synergy
Tooth and Nail
9% of 467 decks
+7% synergy
Lich-Knights' Conquest
8% of 133 decks
-1% synergy
Imperial Seal
8% of 467 decks
+3% synergy
Rishkar's Expertise
8% of 464 decks
-2% synergy
Hull Breach
7% of 467 decks
+4% synergy
Dread Return
7% of 467 decks
+2% synergy
Overwhelming Stampede
7% of 467 decks
+5% synergy
Chandra's Ignition
6% of 466 decks
-2% synergy
Gamble
6% of 467 decks
-2% synergy
Torment of Hailfire
5% of 464 decks
-4% synergy
Regrowth
5% of 467 decks
+1% synergy
Utility Artifacts (10)
Lightning Greaves
42% of 467 decks
+18% synergy
Swiftfoot Boots
26% of 467 decks
-2% synergy
Tarrian's Soulcleaver
19% of 91 decks
+13% synergy
Sensei's Divining Top
9% of 467 decks
+7% synergy
Bolas's Citadel
9% of 462 decks
+5% synergy
The Skullspore Nexus
8% of 84 decks
-11% synergy
Birthing Pod
7% of 467 decks
+0% synergy
The Great Henge
7% of 456 decks
-1% synergy
The One Ring
6% of 247 decks
+2% synergy
Eldrazi Monument
5% of 467 decks
+5% synergy
Enchantments (31)
Dictate of Erebos
53% of 467 decks
+45% synergy
Fecundity
50% of 467 decks
+46% synergy
Bastion of Remembrance
45% of 449 decks
+38% synergy
Insidious Roots
44% of 39 decks
+35% synergy
Beastmaster Ascension
43% of 467 decks
+39% synergy
Cryptolith Rite
38% of 465 decks
+36% synergy
Moldervine Reclamation
37% of 459 decks
+25% synergy
Sylvan Library
35% of 467 decks
+23% synergy
Growing Rites of Itlimoc
31% of 464 decks
+29% synergy
Grave Pact
30% of 467 decks
+26% synergy
The Meathook Massacre
30% of 437 decks
+25% synergy
Primal Vigor
28% of 467 decks
+26% synergy
Awakening Zone
22% of 467 decks
+15% synergy
Rhythm of the Wild
21% of 462 decks
-1% synergy
Phyrexian Arena
19% of 467 decks
+10% synergy
Black Market Connections
18% of 353 decks
+10% synergy
Bitterblossom
16% of 467 decks
+14% synergy
Black Market
13% of 467 decks
+11% synergy
Earthcraft
12% of 467 decks
+12% synergy
City on Fire
10% of 241 decks
+6% synergy
Greater Good
10% of 467 decks
-4% synergy
Fires of Yavimaya
9% of 467 decks
+4% synergy
Necropotence
9% of 467 decks
+5% synergy
Shared Animosity
8% of 467 decks
+7% synergy
Vicious Shadows
7% of 467 decks
+7% synergy
Brazen Cannonade
7% of 273 decks
+6% synergy
Carpet of Flowers
6% of 467 decks
+3% synergy
Pattern of Rebirth
6% of 467 decks
+5% synergy
Fervor
6% of 467 decks
+4% synergy
Concordant Crossroads
6% of 467 decks
+4% synergy
Deathreap Ritual
5% of 467 decks
-5% synergy
Planeswalkers (6)
Xenagos, the Reveler
38% of 467 decks
+35% synergy
Liliana, Dreadhorde General
20% of 462 decks
+17% synergy
Tevesh Szat, Doom of Fools
9% of 448 decks
+7% synergy
Sarkhan Vol
7% of 467 decks
+7% synergy
Garruk Wildspeaker
6% of 467 decks
+6% synergy
Garruk, Cursed Huntsman
5% of 459 decks
+3% synergy
Utility Lands (27)
Urborg, Tomb of Yawgmoth
50% of 467 decks
+28% synergy
Yavimaya, Cradle of Growth
47% of 443 decks
+23% synergy
Kher Keep
45% of 467 decks
+41% synergy
Phyrexian Tower
44% of 467 decks
+32% synergy
Bojuka Bog
36% of 467 decks
+4% synergy
Boseiju, Who Endures
31% of 428 decks
+9% synergy
Reliquary Tower
30% of 467 decks
+10% synergy
Kessig Wolf Run
29% of 467 decks
+8% synergy
Ancient Tomb
24% of 467 decks
+14% synergy
Gaea's Cradle
23% of 467 decks
+20% synergy
Rogue's Passage
19% of 467 decks
+5% synergy
Westvale Abbey
18% of 465 decks
+16% synergy
Temple of the False God
17% of 467 decks
+7% synergy
Cabal Coffers
16% of 467 decks
+9% synergy
Field of the Dead
14% of 459 decks
+4% synergy
High Market
12% of 467 decks
+5% synergy
Sokenzan, Crucible of Defiance
11% of 428 decks
+6% synergy
Khalni Garden
11% of 467 decks
+9% synergy
Takenuma, Abandoned Mire
11% of 423 decks
-3% synergy
Dryad Arbor
10% of 467 decks
+7% synergy
Strip Mine
10% of 467 decks
+2% synergy
Volrath's Stronghold
7% of 467 decks
+6% synergy
Shizo, Death's Storehouse
7% of 467 decks
+6% synergy
Mosswort Bridge
7% of 467 decks
-4% synergy
Grim Backwoods
7% of 467 decks
+3% synergy
Minas Morgul, Dark Fortress
6% of 86 decks
+5% synergy
Urza's Saga
6% of 438 decks
+1% synergy
Mana Artifacts (17)
Sol Ring
93% of 467 decks
+11% synergy
Arcane Signet
74% of 456 decks
+6% synergy
Mana Crypt
25% of 467 decks
+15% synergy
Golgari Signet
21% of 467 decks
+7% synergy
Chromatic Lantern
21% of 467 decks
+13% synergy
Rakdos Signet
20% of 467 decks
+6% synergy
Gruul Signet
20% of 467 decks
+5% synergy
Jeweled Lotus
18% of 447 decks
+11% synergy
Mana Vault
14% of 467 decks
+9% synergy
Fellwar Stone
12% of 467 decks
-3% synergy
Commander's Sphere
11% of 466 decks
-2% synergy
Talisman of Resilience
11% of 459 decks
+1% synergy
Talisman of Impulse
10% of 467 decks
+3% synergy
Talisman of Indulgence
9% of 467 decks
+1% synergy
Chrome Mox
8% of 467 decks
+2% synergy
Lotus Petal
6% of 467 decks
+0% synergy
Thought Vessel
5% of 465 decks
+1% synergy
Lands (50)
Command Tower
96% of 467 decks
+6% synergy
Overgrown Tomb
83% of 467 decks
+32% synergy
Stomping Ground
83% of 467 decks
+31% synergy
Blood Crypt
81% of 467 decks
+33% synergy
Ziatora's Proving Ground
72% of 418 decks
+15% synergy
Verdant Catacombs
61% of 467 decks
+24% synergy
Wooded Foothills
59% of 467 decks
+27% synergy
Bloodstained Mire
58% of 467 decks
+26% synergy
Spire Garden
51% of 463 decks
+19% synergy
Rootbound Crag
51% of 467 decks
+25% synergy
Woodland Cemetery
51% of 467 decks
+23% synergy
Undergrowth Stadium
50% of 447 decks
+15% synergy
Dragonskull Summit
50% of 467 decks
+21% synergy
Luxury Suite
47% of 463 decks
+16% synergy
Savage Lands
46% of 467 decks
-1% synergy
Commercial District
45% of 31 decks
+18% synergy
Raucous Theater
42% of 31 decks
+18% synergy
Underground Mortuary
42% of 31 decks
+16% synergy
Cinder Glade
36% of 466 decks
-10% synergy
Exotic Orchard
32% of 467 decks
-16% synergy
Smoldering Marsh
30% of 466 decks
-10% synergy
Taiga
30% of 467 decks
+17% synergy
Llanowar Wastes
30% of 467 decks
+7% synergy
Badlands
29% of 467 decks
+16% synergy
Bayou
29% of 467 decks
+15% synergy
Rockfall Vale
25% of 437 decks
-3% synergy
Deathcap Glade
23% of 430 decks
+5% synergy
Haunted Ridge
20% of 437 decks
+4% synergy
Fabled Passage
20% of 456 decks
-0% synergy
City of Brass
20% of 467 decks
+10% synergy
Karplusan Forest
19% of 467 decks
+3% synergy
Sulfurous Springs
18% of 467 decks
+5% synergy
Twilight Mire
18% of 467 decks
+6% synergy
Reflecting Pool
17% of 467 decks
+12% synergy
Mana Confluence
17% of 467 decks
+8% synergy
Evolving Wilds
16% of 467 decks
-15% synergy
Blightstep Pathway
14% of 447 decks
+6% synergy
Graven Cairns
14% of 467 decks
+9% synergy
Cragcrown Pathway
13% of 449 decks
+4% synergy
Windswept Heath
13% of 467 decks
+2% synergy
Terramorphic Expanse
13% of 467 decks
-12% synergy
Golgari Rot Farm
12% of 467 decks
-4% synergy
Darkbore Pathway
12% of 447 decks
+3% synergy
Misty Rainforest
11% of 467 decks
-1% synergy
Marsh Flats
11% of 467 decks
-1% synergy
Polluted Delta
11% of 467 decks
+2% synergy
Temple of Abandon
11% of 467 decks
-1% synergy
Arid Mesa
11% of 467 decks
-1% synergy
Temple of Malady
10% of 467 decks
-6% synergy
Fire-Lit Thicket
10% of 467 decks
+5% synergy