Mortuary
Gray Merchant of Asphodel
Bloodflow Connoisseur
Bolas's Citadel

   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 Bloodflow Connoisseur 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 Bloodflow Connoisseur 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
Infinite +1/+1 counters on a creature
Sengir, the Dark Baron // Tevesh Szat, Doom of Fools
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Drana, the Last Bloodchief
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Endrek Sahr, Master Breeder
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Gwenom, Remorseless
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Sidisi, Undead Vizier
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High Synergy Cards
Zulaport Cutthroat
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Viscera Seer
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Carrion Feeder
67%inclusion4 decks6 decks
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Black Market
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Top Cards
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0%synergy
Game Changers
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50%inclusion3 decks6 decks
35%synergy
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23%synergy
Braids, Cabal Minion
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Field of the Dead
17%inclusion1 decks6 decks
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Grim Monolith
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Mox Diamond
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13%synergy
Chrome Mox
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11%synergy
Mana Vault
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10%synergy
Imperial Seal
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10%synergy
Creatures
Umbral Collar Zealot
75%inclusion3 decks4 decks
67%synergy
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33%synergy
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33%synergy
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32%synergy
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29%synergy
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27%synergy
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33%inclusion2 decks6 decks
27%synergy
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25%synergy
Yawgmoth, Thran Physician
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23%synergy
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Syr Konrad, the Grim
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13%synergy
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8%synergy
Sephiroth, Fabled SOLDIER
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20%synergy
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17%synergy
Phyrexian Marauder
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17%synergy
Hexavus
17%inclusion1 decks6 decks
17%synergy
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17%inclusion1 decks6 decks
17%synergy
Dune Mover
17%inclusion1 decks6 decks
17%synergy
Blood Bairn
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16%synergy
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17%inclusion1 decks6 decks
16%synergy
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16%synergy
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17%inclusion1 decks6 decks
16%synergy
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16%synergy
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16%synergy
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16%synergy
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16%synergy
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16%synergy
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16%synergy
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15%synergy
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17%inclusion1 decks6 decks
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17%inclusion1 decks6 decks
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15%synergy
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15%synergy
Cadaver Imp
17%inclusion1 decks6 decks
15%synergy
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15%synergy
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17%inclusion1 decks6 decks
15%synergy
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17%inclusion1 decks6 decks
15%synergy
Instants
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25%synergy
Malakir Rebirth
33%inclusion2 decks6 decks
11%synergy
Deadly Rollick
33%inclusion2 decks6 decks
9%synergy
Deadly Dispute
33%inclusion2 decks6 decks
8%synergy
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33%inclusion2 decks6 decks
8%synergy
Defile
33%inclusion2 decks6 decks
-4%synergy
Withering Torment
25%inclusion1 decks4 decks
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Deadly Derision
17%inclusion1 decks6 decks
16%synergy
Rowan's Grim Search
17%inclusion1 decks6 decks
16%synergy
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17%inclusion1 decks6 decks
15%synergy
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17%inclusion1 decks6 decks
14%synergy
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17%inclusion1 decks6 decks
11%synergy
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17%inclusion1 decks6 decks
8%synergy
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5%synergy
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4%synergy
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17%inclusion1 decks6 decks
-7%synergy
Imp's Mischief
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-8%synergy
Sorceries
Victimize
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24%synergy
Reanimate
50%inclusion3 decks6 decks
11%synergy
Tendrils of Agony
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31%synergy
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21%synergy
Diabolic Tutor
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19%synergy
Night's Whisper
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9%synergy
Sign in Blood
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Stench of Evil
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Bitter Ordeal
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Demonic Collusion
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Restart Sequence
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Doomsday
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Disentomb
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Dark Salvation
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Blood Tribute
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Army of the Damned
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Agadeem's Awakening
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Living Death
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Grim Tutor
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Dread Return
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Rise of the Dark Realms
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Diabolic Intent
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Read the Bones
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Mutilate
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Damnation
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Exsanguinate
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Toxic Deluge
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Utility Artifacts
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37%synergy
Skullclamp
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28%synergy
Bontu's Monument
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22%synergy
Lightning Greaves
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16%synergy
Mindcrank
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28%synergy
Altar of Dementia
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28%synergy
The Darkness Crystal
25%inclusion1 decks4 decks
5%synergy
Diamond Kaleidoscope
17%inclusion1 decks6 decks
17%synergy
Getaway Car
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17%synergy
Storm Cauldron
17%inclusion1 decks6 decks
17%synergy
Slate of Ancestry
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17%synergy
Blood Clock
17%inclusion1 decks6 decks
17%synergy
Helm of Possession
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17%synergy
Scytheclaw
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16%synergy
Ugin's Nexus
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16%synergy
Illusionist's Bracers
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16%synergy
Quietus Spike
17%inclusion1 decks6 decks
16%synergy
Rings of Brighthearth
17%inclusion1 decks6 decks
16%synergy
The Ozolith
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16%synergy
Blasting Station
17%inclusion1 decks6 decks
15%synergy
Spawning Pit
17%inclusion1 decks6 decks
15%synergy
Mimic Vat
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15%synergy
Idol of Oblivion
17%inclusion1 decks6 decks
15%synergy
Lavaspur Boots
17%inclusion1 decks6 decks
15%synergy
Demon's Horn
17%inclusion1 decks6 decks
12%synergy
Wishclaw Talisman
17%inclusion1 decks6 decks
10%synergy
Sensei's Divining Top
17%inclusion1 decks6 decks
8%synergy
The One Ring
17%inclusion1 decks6 decks
7%synergy
Aetherflux Reservoir
17%inclusion1 decks6 decks
7%synergy
Whip of Erebos
17%inclusion1 decks6 decks
6%synergy
Wayfarer's Bauble
17%inclusion1 decks6 decks
1%synergy
Swiftfoot Boots
17%inclusion1 decks6 decks
-15%synergy
Enchantments
Thran Vigil
50%inclusion3 decks6 decks
49%synergy
Sanguine Bond
50%inclusion3 decks6 decks
38%synergy
Bastion of Remembrance
50%inclusion3 decks6 decks
33%synergy
Grave Pact
50%inclusion3 decks6 decks
31%synergy
Contamination
33%inclusion2 decks6 decks
30%synergy
Dictate of Erebos
33%inclusion2 decks6 decks
23%synergy
Animate Dead
33%inclusion2 decks6 decks
16%synergy
Phyrexian Arena
33%inclusion2 decks6 decks
-7%synergy
Meathook Massacre II
25%inclusion1 decks4 decks
18%synergy
Hecatomb
17%inclusion1 decks6 decks
16%synergy
Conspiracy
17%inclusion1 decks6 decks
16%synergy
One Ring to Rule Them All
17%inclusion1 decks6 decks
16%synergy
Attrition
17%inclusion1 decks6 decks
14%synergy
Agent of the Iron Throne
17%inclusion1 decks6 decks
13%synergy
Wound Reflection
17%inclusion1 decks6 decks
13%synergy
Dark Prophecy
17%inclusion1 decks6 decks
13%synergy
Revel in Riches
17%inclusion1 decks6 decks
12%synergy
Greed
17%inclusion1 decks6 decks
10%synergy
Dreadhorde Invasion
17%inclusion1 decks6 decks
8%synergy
Phyrexian Reclamation
17%inclusion1 decks6 decks
7%synergy
Kaya's Ghostform
17%inclusion1 decks6 decks
7%synergy
Exquisite Blood
17%inclusion1 decks6 decks
3%synergy
The Meathook Massacre
17%inclusion1 decks6 decks
-1%synergy
Black Market Connections
17%inclusion1 decks6 decks
-7%synergy
Planeswalkers
Tevesh Szat, Doom of Fools
17%inclusion1 decks6 decks
13%synergy
Liliana, Dreadhorde General
17%inclusion1 decks6 decks
3%synergy
Liliana of the Dark Realms
17%inclusion1 decks6 decks
3%synergy
Utility Lands
Phyrexian Tower
50%inclusion3 decks6 decks
25%synergy
Cabal Coffers
50%inclusion3 decks6 decks
-5%synergy
Volrath's Stronghold
33%inclusion2 decks6 decks
30%synergy
Deserted Temple
33%inclusion2 decks6 decks
29%synergy
Witch's Cottage
33%inclusion2 decks6 decks
9%synergy
Nykthos, Shrine to Nyx
33%inclusion2 decks6 decks
4%synergy
Urborg, Tomb of Yawgmoth
33%inclusion2 decks6 decks
-4%synergy
Bojuka Bog
33%inclusion2 decks6 decks
-14%synergy
Diamond Valley
17%inclusion1 decks6 decks
17%synergy
Scorched Ruins
17%inclusion1 decks6 decks
16%synergy
Spawning Pool
17%inclusion1 decks6 decks
16%synergy
Echoing Deeps
17%inclusion1 decks6 decks
16%synergy
Hostile Hostel
17%inclusion1 decks6 decks
16%synergy
Cabal Pit
17%inclusion1 decks6 decks
16%synergy
Everglades
17%inclusion1 decks6 decks
15%synergy
Mikokoro, Center of the Sea
17%inclusion1 decks6 decks
14%synergy
Vesuva
17%inclusion1 decks6 decks
14%synergy
The Black Gate
17%inclusion1 decks6 decks
13%synergy
Lake of the Dead
17%inclusion1 decks6 decks
12%synergy
Crypt of Agadeem
17%inclusion1 decks6 decks
6%synergy
Takenuma, Abandoned Mire
17%inclusion1 decks6 decks
1%synergy
War Room
17%inclusion1 decks6 decks
0%synergy
Castle Locthwain
17%inclusion1 decks6 decks
-1%synergy
Reliquary Tower
17%inclusion1 decks6 decks
-14%synergy
Cabal Stronghold
17%inclusion1 decks6 decks
-18%synergy
Mana Artifacts
Arcane Signet
83%inclusion5 decks6 decks
21%synergy
Sol Ring
67%inclusion4 decks6 decks
-19%synergy
The Soul Stone
50%inclusion2 decks4 decks
36%synergy
Charcoal Diamond
50%inclusion3 decks6 decks
27%synergy
Thought Vessel
50%inclusion3 decks6 decks
24%synergy
Crowded Crypt
33%inclusion2 decks6 decks
28%synergy
Caged Sun
33%inclusion2 decks6 decks
22%synergy
Fellwar Stone
33%inclusion2 decks6 decks
19%synergy
Mind Stone
33%inclusion2 decks6 decks
4%synergy
Mox Amber
17%inclusion1 decks6 decks
12%synergy
Nyx Lotus
17%inclusion1 decks6 decks
10%synergy
Sceptre of Eternal Glory
17%inclusion1 decks6 decks
8%synergy
Throne of Eldraine
17%inclusion1 decks6 decks
6%synergy
Lands
The Mycosynth Gardens
17%inclusion1 decks6 decks
15%synergy
Command Tower
17%inclusion1 decks6 decks
11%synergy
Myriad Landscape
17%inclusion1 decks6 decks
-9%synergy