Prowling Geistcatcher
Phyrexian Delver
Gray Merchant of Asphodel
Ashnod's Altar

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.

   Steps

How does this combo work?
1
Activate Ashnod's Altar twice by sacrificing Phyrexian Delver and Gray Merchant.
2
When Phyrexian Delver and Gray Merchant die, Prowling Geistcatcher's first ability triggers twice, exiling Phyrexian Delver and Gray Merchant from your graveyard.
3
Activate Ashnod's Altar by sacrificing Prowling Geistcatcher.
4
When Prowling Geistcatcher dies, its second ability triggers, returning Phyrexian Delver and Gray Merchant from exile to the battlefield.
5
When Phyrexian Delver and Gray Merchant enter the battlefield, they trigger.
6
Resolve the Gray Merchant trigger, causing each opponent to lose an amount of life equal to your devotion to black, and causing you to gain life equal to the life lost this way.
7
Resolve the Phyrexian Delver trigger, causing you to return Prowling Geistcatcher from your graveyard to the battlefield and lose 4 life.
8
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite colorless mana
Infinite lifegain triggers
Infinite lifegain
Infinite lifeloss
Grenzo, Dungeon Warden
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Top Cards
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Sorceries
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Utility Artifacts
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37%synergy
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28%synergy
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26%synergy
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23%synergy
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14%synergy
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19%synergy
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17%synergy
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4%synergy
Enchantments
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9%synergy
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15%inclusion11 decks75 decks
11%synergy
Mana Echoes
14%inclusion5 decks35 decks
13%synergy
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14%inclusion5 decks35 decks
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Braid of Fire
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Blight Mound
6.7%inclusion5 decks75 decks
6%synergy
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6.7%inclusion5 decks75 decks
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Dictate of Erebos
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4%synergy
Grave Pact
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2%synergy
Chthonian Nightmare
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Dark Prophecy
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5%synergy
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5.3%inclusion4 decks75 decks
0%synergy
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5.3%inclusion4 decks75 decks
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Planeswalkers
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4%synergy
Utility Lands
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39%synergy
Great Furnace
43%inclusion15 decks35 decks
37%synergy
Bojuka Bog
41%inclusion31 decks75 decks
12%synergy
Phyrexian Tower
36%inclusion27 decks75 decks
27%synergy
Buried Ruin
33%inclusion25 decks75 decks
29%synergy
Urborg, Tomb of Yawgmoth
33%inclusion25 decks75 decks
24%synergy
Zhalfirin Void
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26%synergy
Cabal Coffers
27%inclusion20 decks75 decks
17%synergy
Spinerock Knoll
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22%synergy
Fire Nation Palace
23%inclusion3 decks13 decks
19%synergy
High Market
21%inclusion16 decks75 decks
19%synergy
Vault of Whispers
20%inclusion15 decks75 decks
16%synergy
Nykthos, Shrine to Nyx
20%inclusion15 decks75 decks
15%synergy
Cabal Stronghold
17%inclusion13 decks75 decks
14%synergy
Takenuma, Abandoned Mire
17%inclusion13 decks75 decks
9%synergy
Mortuary Mire
15%inclusion11 decks75 decks
11%synergy
Witch's Cottage
13%inclusion10 decks75 decks
10%synergy
Crypt of Agadeem
11%inclusion8 decks75 decks
9%synergy
Spymaster's Vault
9.5%inclusion7 decks74 decks
7%synergy
Dakmor Salvage
9.3%inclusion7 decks75 decks
7%synergy
War Room
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4%synergy
Tomb Fortress
8.0%inclusion6 decks75 decks
7%synergy
Ghost Quarter
8.0%inclusion6 decks75 decks
6%synergy
Inventors' Fair
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4%synergy
Reliquary Tower
8.0%inclusion6 decks75 decks
-22%synergy
Isolated Watchtower
6.7%inclusion5 decks75 decks
7%synergy
Drownyard Temple
6.7%inclusion5 decks75 decks
6%synergy
Volrath's Stronghold
6.7%inclusion5 decks75 decks
6%synergy
Homeward Path
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5%synergy
Westvale Abbey
6.7%inclusion5 decks75 decks
4%synergy
Castle Locthwain
6.7%inclusion5 decks75 decks
3%synergy
Urza's Saga
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0%synergy
Temple of the False God
6.7%inclusion5 decks75 decks
-2%synergy
Thespian's Stage
5.3%inclusion4 decks75 decks
3%synergy
Command Beacon
5.3%inclusion4 decks75 decks
0%synergy
Rogue's Passage
5.3%inclusion4 decks75 decks
-15%synergy
Mana Artifacts
Sol Ring
85%inclusion64 decks75 decks
2%synergy
Arcane Signet
44%inclusion33 decks75 decks
-28%synergy
Rakdos Signet
23%inclusion8 decks35 decks
-1%synergy
Mind Stone
17%inclusion13 decks75 decks
3%synergy
Fellwar Stone
17%inclusion13 decks75 decks
-3%synergy
Talisman of Indulgence
17%inclusion6 decks35 decks
-10%synergy
Charcoal Diamond
12%inclusion9 decks75 decks
8%synergy
The Soul Stone
11%inclusion4 decks36 decks
7%synergy
Cursed Mirror
8.6%inclusion3 decks35 decks
3%synergy
Thought Vessel
6.7%inclusion5 decks75 decks
-11%synergy
Thran Turbine
5.3%inclusion4 decks75 decks
5%synergy
Crowded Crypt
5.3%inclusion4 decks75 decks
4%synergy
Lands
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71%inclusion5 decks7 decks
44%synergy
Command Tower
60%inclusion45 decks75 decks
-14%synergy
Woodland Cemetery
57%inclusion4 decks7 decks
24%synergy
Blood Crypt
57%inclusion20 decks35 decks
19%synergy
Temple of Malice
54%inclusion19 decks35 decks
42%synergy
Dragonskull Summit
54%inclusion19 decks35 decks
19%synergy
Sulfurous Springs
51%inclusion18 decks35 decks
28%synergy
Smoldering Marsh
51%inclusion18 decks35 decks
18%synergy
Luxury Suite
49%inclusion17 decks35 decks
25%synergy
Graven Cairns
46%inclusion16 decks35 decks
36%synergy
Twilight Mire
43%inclusion3 decks7 decks
29%synergy
Golgari Rot Farm
43%inclusion3 decks7 decks
26%synergy
Overgrown Tomb
43%inclusion3 decks7 decks
1%synergy
Haunted Ridge
37%inclusion13 decks35 decks
21%synergy
Blightstep Pathway
31%inclusion11 decks35 decks
24%synergy
Rakdos Carnarium
31%inclusion11 decks35 decks
20%synergy
Crystal Grotto
25%inclusion19 decks75 decks
25%synergy
Bloodstained Mire
24%inclusion18 decks75 decks
13%synergy
Tainted Peak
23%inclusion8 decks35 decks
12%synergy
Foreboding Ruins
23%inclusion8 decks35 decks
8%synergy
Blazemire Verge
23%inclusion7 decks31 decks
12%synergy
Shadowblood Ridge
20%inclusion7 decks35 decks
7%synergy
Myriad Landscape
20%inclusion15 decks75 decks
5%synergy
The Grey Havens
17%inclusion13 decks75 decks
16%synergy
Badlands
17%inclusion6 decks35 decks
4%synergy
Drossforge Bridge
14%inclusion5 decks35 decks
11%synergy
Cavern of Souls
13%inclusion10 decks75 decks
6%synergy
Path of Ancestry
12%inclusion9 decks75 decks
-10%synergy
Rakdos Guildgate
11%inclusion4 decks35 decks
8%synergy
Marsh Flats
11%inclusion8 decks75 decks
0%synergy
Exotic Orchard
11%inclusion8 decks75 decks
-26%synergy
Demolition Field
9.3%inclusion7 decks75 decks
6%synergy
Verdant Catacombs
9.3%inclusion7 decks75 decks
-2%synergy
Polluted Delta
9.3%inclusion7 decks75 decks
-3%synergy
Auntie's Hovel
8.6%inclusion3 decks35 decks
8%synergy
Mount Doom
8.6%inclusion3 decks35 decks
3%synergy
Blackcleave Cliffs
8.6%inclusion3 decks35 decks
2%synergy
Bloodfell Caves
8.6%inclusion3 decks35 decks
2%synergy
Raucous Theater
8.6%inclusion3 decks35 decks
-2%synergy
Talon Gates of Madara
8.2%inclusion6 decks73 decks
6%synergy
Prismatic Vista
8.0%inclusion6 decks75 decks
3%synergy
Wooded Foothills
8.0%inclusion6 decks75 decks
-3%synergy
Lazotep Quarry
6.8%inclusion5 decks73 decks
6%synergy
Plaza of Heroes
6.7%inclusion5 decks75 decks
4%synergy
Evolving Wilds
6.7%inclusion5 decks75 decks
-14%synergy
Opal Palace
5.3%inclusion4 decks75 decks
3%synergy
Arid Mesa
5.3%inclusion4 decks75 decks
-5%synergy