Mortuary
Gray Merchant of Asphodel
Bolas's Citadel
Yahenni, Undying Partisan

   Prerequisites

What do I need to start this combo?
Gray Merchant of Asphodel in hand or in your library (Gray Merchant of Asphodel on top of your library in your library).
All other permanents on the battlefield.
Your life total is at least 6 if Gray Merchant is on the top of your library, or you have 3 available otherwise.

   Steps

How does this combo work?
1
Cast Gray Merchant either from your hand by paying 3 or from the top of your library by paying 5 life.
2
When Gray Merchant enters, it triggers, causing each opponent to lose life equal to your devotion to black and causing you to gain life equal to the life lost this way.
3
Activate Yahenni by sacrificing Gray Merchant.
4
When Gray Merchant dies, Mortuary triggers, putting Gray Merchant from your graveyard onto the top of your library.
5
Resolve the Yahenni ability.
6
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite lifegain triggers
Infinite lifegain
Infinite lifeloss
Sephiroth, Fabled SOLDIER
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New Cards
Bitterbloom Bearer
25%inclusion5 decks20 decks
23%synergy
Super Shredder
17%inclusion3 decks18 decks
16%synergy
Moonshadow
17%inclusion2 decks12 decks
16%synergy
Dream Beavers
13%inclusion1 decks8 decks
12%synergy
Twilight Diviner
8.3%inclusion1 decks12 decks
6%synergy
High Synergy Cards
Blood Artist
71%inclusion20 decks28 decks
60%synergy
Carrion Feeder
64%inclusion18 decks28 decks
60%synergy
Ashnod's Altar
64%inclusion18 decks28 decks
58%synergy
Viscera Seer
64%inclusion18 decks28 decks
56%synergy
Crypt Ghast
61%inclusion17 decks28 decks
56%synergy
Ayara, First of Locthwain
57%inclusion16 decks28 decks
54%synergy
Jet Medallion
57%inclusion16 decks28 decks
53%synergy
Pitiless Plunderer
57%inclusion16 decks28 decks
49%synergy
Cabal Coffers
57%inclusion16 decks28 decks
48%synergy
Warren Soultrader
52%inclusion14 decks27 decks
46%synergy
Top Cards
Dark Ritual
64%inclusion18 decks28 decks
40%synergy
Zulaport Cutthroat
54%inclusion15 decks28 decks
45%synergy
Feed the Swarm
54%inclusion15 decks28 decks
38%synergy
Reanimate
50%inclusion14 decks28 decks
31%synergy
Reassembling Skeleton
46%inclusion13 decks28 decks
43%synergy
Skullclamp
46%inclusion13 decks28 decks
35%synergy
Bontu's Monument
43%inclusion12 decks28 decks
41%synergy
K'rrik, Son of Yawgmoth
43%inclusion12 decks28 decks
41%synergy
Ophiomancer
43%inclusion12 decks28 decks
39%synergy
Phyrexian Altar
43%inclusion12 decks28 decks
39%synergy
Game Changers
Demonic Tutor
39%inclusion11 decks28 decks
20%synergy
Necropotence
32%inclusion9 decks28 decks
27%synergy
Vampiric Tutor
32%inclusion9 decks28 decks
17%synergy
Orcish Bowmasters
21%inclusion6 decks28 decks
13%synergy
The One Ring
18%inclusion5 decks28 decks
10%synergy
Mana Vault
11%inclusion3 decks28 decks
5%synergy
Creatures
Gravecrawler
43%inclusion12 decks28 decks
39%synergy
Accursed Marauder
37%inclusion10 decks27 decks
32%synergy
Syr Konrad, the Grim
36%inclusion10 decks28 decks
27%synergy
Blood Pet
32%inclusion9 decks28 decks
31%synergy
Pawn of Ulamog
32%inclusion9 decks28 decks
30%synergy
Mikaeus, the Unhallowed
32%inclusion9 decks28 decks
30%synergy
Yawgmoth, Thran Physician
32%inclusion9 decks28 decks
29%synergy
Umbral Collar Zealot
32%inclusion8 decks25 decks
29%synergy
Gwenom, Remorseless
30%inclusion7 decks23 decks
29%synergy
Nine-Lives Familiar
30%inclusion8 decks27 decks
28%synergy
Timeline Culler
28%inclusion7 decks25 decks
27%synergy
Vengeful Bloodwitch
26%inclusion7 decks27 decks
24%synergy
Forsaken Miner
25%inclusion7 decks28 decks
24%synergy
Woe Strider
25%inclusion7 decks28 decks
23%synergy
Fleshbag Marauder
25%inclusion7 decks28 decks
21%synergy
Dauthi Voidwalker
25%inclusion7 decks28 decks
19%synergy
Braids, Arisen Nightmare
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18%synergy
Solemn Simulacrum
25%inclusion7 decks28 decks
13%synergy
Butcher Ghoul
21%inclusion6 decks28 decks
21%synergy
Chainer, Dementia Master
21%inclusion6 decks28 decks
21%synergy
Merciless Executioner
21%inclusion6 decks28 decks
20%synergy
Lord Skitter, Sewer King
21%inclusion6 decks28 decks
20%synergy
Drivnod, Carnage Dominus
21%inclusion6 decks28 decks
20%synergy
Priest of Forgotten Gods
21%inclusion6 decks28 decks
19%synergy
Grim Haruspex
21%inclusion6 decks28 decks
19%synergy
Marionette Apprentice
19%inclusion5 decks27 decks
14%synergy
Sifter of Skulls
18%inclusion5 decks28 decks
17%synergy
Butcher of Malakir
18%inclusion5 decks28 decks
15%synergy
Plaguecrafter
18%inclusion5 decks28 decks
14%synergy
Morbid Opportunist
18%inclusion5 decks28 decks
10%synergy
Zodiark, Umbral God
16%inclusion4 decks25 decks
15%synergy
Vincent Valentine
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15%synergy
Fumulus, the Infestation
15%inclusion4 decks26 decks
15%synergy
Maha, Its Feathers Night
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13%synergy
Dimir House Guard
14%inclusion4 decks28 decks
14%synergy
Agent Venom
14%inclusion3 decks21 decks
13%synergy
Endrek Sahr, Master Breeder
14%inclusion4 decks28 decks
13%synergy
Jadar, Ghoulcaller of Nephalia
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12%synergy
Disciple of Bolas
14%inclusion4 decks28 decks
12%synergy
Bloodghast
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12%synergy
Sheoldred, the Apocalypse
14%inclusion4 decks28 decks
9%synergy
Xu-Ifit, Osteoharmonist
12%inclusion3 decks25 decks
11%synergy
Boggart Trawler
11%inclusion3 decks27 decks
7%synergy
Thrull Parasite
11%inclusion3 decks28 decks
10%synergy
Soldevi Adnate
11%inclusion3 decks28 decks
10%synergy
Pontiff of Blight
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10%synergy
Magus of the Coffers
11%inclusion3 decks28 decks
10%synergy
Deathgreeter
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10%synergy
Bloodsoaked Champion
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10%synergy
Gisa, the Hellraiser
11%inclusion3 decks28 decks
10%synergy
Instants
Malakir Rebirth
50%inclusion14 decks28 decks
42%synergy
Culling the Weak
36%inclusion10 decks28 decks
32%synergy
Flare of Malice
33%inclusion9 decks27 decks
31%synergy
Withering Torment
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25%synergy
Fell the Profane
33%inclusion9 decks27 decks
24%synergy
Undying Malice
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26%synergy
Infernal Grasp
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21%synergy
Deadly Rollick
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15%synergy
Cabal Ritual
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20%synergy
Deadly Dispute
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13%synergy
Sheoldred's Edict
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Village Rites
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Supernatural Stamina
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Fake Your Own Death
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Soul Shatter
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15%synergy
Not Dead After All
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Imp's Mischief
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Darkness
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Snuff Out
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11%synergy
Tragic Slip
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Murder
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Entomb
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Shallow Grave
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10%synergy
Return to Action
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10%synergy
Undying Evil
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10%synergy
Black Sun's Twilight
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10%synergy
Sudden Spoiling
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9%synergy
Hero's Downfall
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9%synergy
Feign Death
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9%synergy
Defile
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8%synergy
Sorceries
Exsanguinate
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32%synergy
Diabolic Intent
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32%synergy
Toxic Deluge
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18%synergy
Sign in Blood
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23%synergy
Victimize
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20%synergy
Diabolic Tutor
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19%synergy
Night's Whisper
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16%synergy
Read the Bones
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16%synergy
Damnation
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15%synergy
Yawgmoth's Will
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17%synergy
Agadeem's Awakening
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15%synergy
Temporal Extortion
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14%synergy
Doomsday
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14%synergy
Bubbling Muck
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13%synergy
Torment of Hailfire
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10%synergy
Living Death
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9%synergy
Final Act
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10%synergy
Repay in Kind
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10%synergy
Syphon Mind
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8%synergy
Unearth
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8%synergy
Grim Tutor
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7%synergy
Dread Return
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6%synergy
Utility Artifacts
Lightning Greaves
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7%synergy
Sensei's Divining Top
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24%synergy
Aetherflux Reservoir
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18%synergy
The Darkness Crystal
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13%synergy
Altar of Dementia
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12%synergy
Swiftfoot Boots
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-13%synergy
Prism Ring
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11%synergy
Demon's Horn
11%inclusion3 decks28 decks
10%synergy
Expedition Map
11%inclusion3 decks28 decks
8%synergy
Enchantments
Black Market Connections
43%inclusion12 decks28 decks
31%synergy
Bastion of Remembrance
32%inclusion9 decks28 decks
26%synergy
Phyrexian Arena
32%inclusion9 decks28 decks
17%synergy
Black Market
29%inclusion8 decks28 decks
24%synergy
Grave Pact
29%inclusion8 decks28 decks
24%synergy
The Meathook Massacre
25%inclusion7 decks28 decks
20%synergy
Bitterblossom
21%inclusion6 decks28 decks
17%synergy
Font of Agonies
18%inclusion5 decks28 decks
17%synergy
Nest of Scarabs
18%inclusion5 decks28 decks
17%synergy
Dictate of Erebos
18%inclusion5 decks28 decks
15%synergy
Chthonian Nightmare
15%inclusion4 decks27 decks
13%synergy
Greed
14%inclusion4 decks28 decks
13%synergy
Oversold Cemetery
14%inclusion4 decks28 decks
12%synergy
Exquisite Blood
14%inclusion4 decks28 decks
9%synergy
Funeral Room // Awakening Hall
11%inclusion3 decks27 decks
9%synergy
Biotransference
11%inclusion3 decks28 decks
10%synergy
Kaya's Ghostform
11%inclusion3 decks28 decks
7%synergy
Sanguine Bond
11%inclusion3 decks28 decks
6%synergy
Animate Dead
11%inclusion3 decks28 decks
2%synergy
Grave Venerations
8.3%inclusion1 decks12 decks
6%synergy
Planeswalkers
Liliana, Dreadhorde General
18%inclusion5 decks28 decks
14%synergy
Tevesh Szat, Doom of Fools
11%inclusion3 decks28 decks
10%synergy
Utility Lands
Phyrexian Tower
50%inclusion14 decks28 decks
41%synergy
Urborg, Tomb of Yawgmoth
50%inclusion14 decks28 decks
41%synergy
Bojuka Bog
50%inclusion14 decks28 decks
20%synergy
Nykthos, Shrine to Nyx
29%inclusion8 decks28 decks
23%synergy
Reliquary Tower
29%inclusion8 decks28 decks
-1%synergy
Lake of the Dead
25%inclusion7 decks28 decks
24%synergy
High Market
25%inclusion7 decks28 decks
22%synergy
Barren Moor
21%inclusion6 decks28 decks
18%synergy
Shizo, Death's Storehouse
21%inclusion6 decks28 decks
17%synergy
Spymaster's Vault
19%inclusion5 decks27 decks
16%synergy
Volrath's Stronghold
18%inclusion5 decks28 decks
17%synergy
Cabal Stronghold
18%inclusion5 decks28 decks
15%synergy
Castle Locthwain
18%inclusion5 decks28 decks
14%synergy
Karn's Bastion
18%inclusion5 decks28 decks
13%synergy
War Room
18%inclusion5 decks28 decks
12%synergy
Urza's Saga
18%inclusion5 decks28 decks
11%synergy
Takenuma, Abandoned Mire
18%inclusion5 decks28 decks
9%synergy
Susur Secundi, Void Altar
16%inclusion4 decks25 decks
14%synergy
Deserted Temple
14%inclusion4 decks28 decks
13%synergy
Crypt of Agadeem
14%inclusion4 decks28 decks
13%synergy
Command Beacon
14%inclusion4 decks28 decks
9%synergy
Midgar, City of Mako
12%inclusion3 decks25 decks
8%synergy
Radiant Fountain
11%inclusion3 decks28 decks
10%synergy
Memorial to Folly
11%inclusion3 decks28 decks
10%synergy
Mortuary Mire
11%inclusion3 decks28 decks
7%synergy
Mana Artifacts
Sol Ring
82%inclusion23 decks28 decks
-1%synergy
Arcane Signet
39%inclusion11 decks28 decks
-33%synergy
The Soul Stone
35%inclusion8 decks23 decks
31%synergy
Charcoal Diamond
25%inclusion7 decks28 decks
21%synergy
Mind Stone
21%inclusion6 decks28 decks
7%synergy
Thought Vessel
18%inclusion5 decks28 decks
0%synergy
Mox Amber
11%inclusion3 decks28 decks
6%synergy
Commander's Sphere
11%inclusion3 decks28 decks
-1%synergy
Lands
Myriad Landscape
29%inclusion8 decks28 decks
13%synergy
Urza's Cave
26%inclusion7 decks27 decks
23%synergy
Demolition Field
14%inclusion4 decks28 decks
11%synergy
Gemstone Caverns
11%inclusion3 decks28 decks
6%synergy
Marsh Flats
11%inclusion3 decks28 decks
0%synergy
Verdant Catacombs
11%inclusion3 decks28 decks
0%synergy
Bloodstained Mire
11%inclusion3 decks28 decks
-1%synergy
Polluted Delta
11%inclusion3 decks28 decks
-1%synergy
Command Tower
11%inclusion3 decks28 decks
-64%synergy