Mortuary
Gray Merchant of Asphodel
Umbral Collar Zealot
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 Umbral Collar Zealot 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 Umbral Collar Zealot 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 surveil
Gwenom, Remorseless
12%inclusion409 decks3.41K decks
Sephiroth, Fabled SOLDIER
0.2%inclusion47 decks22.6K decks
Braids, Arisen Nightmare
0.1%inclusion5 decks8.05K decks
Yawgmoth, Thran Physician
0.0%inclusion3 decks6.57K decks
The Ghoul, Gunslinger
0.2%inclusion3 decks1.42K decks
Shadow the Hedgehog
0.0%inclusion2 decks9.40K decks
Syr Konrad, the Grim
0.0%inclusion2 decks5.59K decks
Ayara, First of Locthwain
0.0%inclusion2 decks6.44K decks
Kalitas, Bloodchief of Ghet
1.2%inclusion1 decks83 decks
Sengir, the Dark Baron // Tevesh Szat, Doom of Fools
0.3%inclusion1 decks304 decks
Gollum, Patient Plotter
0.6%inclusion1 decks156 decks
Valgavoth, Terror Eater
0.0%inclusion1 decks3.71K decks
Witch-king of Angmar
0.1%inclusion1 decks891 decks
Mikaeus, the Unhallowed
0.1%inclusion1 decks1.96K decks
Nalia de'Arnise
0.0%inclusion1 decks2.86K decks
Lurrus of the Dream-Den
0.0%inclusion1 decks2.73K decks
Imskir Iron-Eater
0.0%inclusion1 decks5.25K decks
Acererak the Archlich
0.0%inclusion1 decks2.11K decks
New Cards
Skateboard
29%inclusion44 decks150 decks
29%synergy
Dream Beavers
10%inclusion15 decks145 decks
10%synergy
Splinter's Technique
4.3%inclusion9 decks210 decks
3%synergy
Shredder's Technique
3.2%inclusion5 decks155 decks
2%synergy
Super Shredder
2.0%inclusion8 decks405 decks
1%synergy
High Synergy Cards
Sensei's Divining Top
87%inclusion426 decks487 decks
83%synergy
Aetherflux Reservoir
83%inclusion402 decks487 decks
79%synergy
Viscera Seer
85%inclusion416 decks487 decks
77%synergy
Blood Pet
75%inclusion364 decks487 decks
74%synergy
Culling the Weak
77%inclusion377 decks487 decks
73%synergy
Dark Ritual
96%inclusion469 decks487 decks
72%synergy
Jet Medallion
74%inclusion362 decks487 decks
71%synergy
Tendrils of Agony
71%inclusion346 decks487 decks
70%synergy
Lavaspur Boots
70%inclusion339 decks487 decks
68%synergy
Scheming Symmetry
69%inclusion335 decks487 decks
67%synergy
Top Cards
Lightning Greaves
82%inclusion400 decks487 decks
57%synergy
Cabal Ritual
72%inclusion351 decks487 decks
67%synergy
Reanimate
72%inclusion350 decks487 decks
53%synergy
Death Cultist
66%inclusion320 decks487 decks
66%synergy
Deadly Rollick
60%inclusion293 decks487 decks
46%synergy
Crashing Drawbridge
59%inclusion287 decks487 decks
57%synergy
Doom Whisperer
59%inclusion286 decks487 decks
57%synergy
Feed the Swarm
59%inclusion286 decks487 decks
43%synergy
Swiftfoot Boots
57%inclusion278 decks487 decks
30%synergy
Beseech the Mirror
56%inclusion273 decks487 decks
53%synergy
Game Changers
Vampiric Tutor
67%inclusion327 decks487 decks
53%synergy
Necropotence
65%inclusion316 decks487 decks
60%synergy
Demonic Tutor
60%inclusion291 decks487 decks
41%synergy
Ancient Tomb
52%inclusion254 decks487 decks
43%synergy
Orcish Bowmasters
50%inclusion242 decks487 decks
41%synergy
Mana Vault
47%inclusion228 decks487 decks
41%synergy
Chrome Mox
45%inclusion217 decks487 decks
39%synergy
Imperial Seal
44%inclusion214 decks487 decks
39%synergy
Opposition Agent
41%inclusion198 decks487 decks
36%synergy
The One Ring
40%inclusion196 decks487 decks
32%synergy
Creatures
Dualcaster Mage
100%inclusion3 decks3 decks
96%synergy
Pinnacle Monk
100%inclusion3 decks3 decks
95%synergy
Sheoldred, the Apocalypse
54%inclusion263 decks487 decks
49%synergy
Blood Artist
54%inclusion263 decks487 decks
43%synergy
Boggart Trawler
52%inclusion253 decks487 decks
48%synergy
Crypt Ghast
51%inclusion248 decks487 decks
46%synergy
Dauthi Voidwalker
49%inclusion237 decks487 decks
42%synergy
K'rrik, Son of Yawgmoth
40%inclusion197 decks487 decks
38%synergy
Bloodthirsty Conqueror
35%inclusion170 decks487 decks
31%synergy
Zulaport Cutthroat
34%inclusion165 decks487 decks
25%synergy
Ornithopter
34%inclusion164 decks487 decks
32%synergy
Enduring Tenacity
33%inclusion159 decks487 decks
29%synergy
Ayara, First of Locthwain
31%inclusion149 decks487 decks
27%synergy
Shard of the Nightbringer
30%inclusion144 decks487 decks
29%synergy
Memnite
29%inclusion143 decks487 decks
29%synergy
Vito, Thorn of the Dusk Rose
29%inclusion139 decks487 decks
23%synergy
Warren Soultrader
27%inclusion133 decks487 decks
22%synergy
Phyrexian Walker
24%inclusion119 decks487 decks
24%synergy
Gravecrawler
22%inclusion108 decks487 decks
18%synergy
Vilis, Broker of Blood
20%inclusion98 decks487 decks
17%synergy
Hoarding Broodlord
19%inclusion94 decks487 decks
17%synergy
Shield Sphere
18%inclusion89 decks487 decks
18%synergy
Diamond Lion
18%inclusion86 decks487 decks
18%synergy
Sephiroth, Fabled SOLDIER
17%inclusion85 decks487 decks
15%synergy
Braids, Arisen Nightmare
17%inclusion85 decks487 decks
10%synergy
Pitiless Plunderer
17%inclusion81 decks487 decks
8%synergy
Ancient Cellarspawn
16%inclusion77 decks487 decks
14%synergy
Diamond Mare
15%inclusion75 decks487 decks
15%synergy
Forsaken Miner
15%inclusion75 decks487 decks
14%synergy
Carrion Feeder
13%inclusion65 decks487 decks
9%synergy
Marauding Blight-Priest
13%inclusion62 decks487 decks
10%synergy
Reassembling Skeleton
13%inclusion62 decks487 decks
9%synergy
Woe Strider
13%inclusion61 decks487 decks
11%synergy
Bloodletter of Aclazotz
13%inclusion61 decks487 decks
9%synergy
Accursed Marauder
13%inclusion61 decks487 decks
7%synergy
Creeping Bloodsucker
12%inclusion58 decks487 decks
10%synergy
Yawgmoth, Thran Physician
12%inclusion58 decks487 decks
9%synergy
Pawn of Ulamog
11%inclusion52 decks487 decks
9%synergy
Noxious Gearhulk
10%inclusion50 decks487 decks
7%synergy
Ophiomancer
10%inclusion50 decks487 decks
7%synergy
Fleshbag Marauder
10%inclusion49 decks487 decks
7%synergy
Cauldron Familiar
10%inclusion48 decks487 decks
9%synergy
Overeager Apprentice
10%inclusion47 decks487 decks
10%synergy
Dread Presence
10%inclusion47 decks487 decks
8%synergy
Gwenom, Remorseless
9.5%inclusion46 decks486 decks
8%synergy
Phyrexian Devourer
9.4%inclusion46 decks487 decks
9%synergy
Serrated Scorpion
9.2%inclusion45 decks487 decks
9%synergy
Kokusho, the Evening Star
9.2%inclusion45 decks487 decks
8%synergy
Massacre Wurm
9.2%inclusion45 decks487 decks
4%synergy
Merciless Executioner
9.0%inclusion44 decks487 decks
8%synergy
Instants
Fell the Profane
65%inclusion318 decks487 decks
56%synergy
Malakir Rebirth
49%inclusion237 decks487 decks
41%synergy
Withering Torment
46%inclusion225 decks487 decks
38%synergy
Insidious Dreams
44%inclusion212 decks487 decks
43%synergy
Imp's Mischief
43%inclusion210 decks487 decks
39%synergy
Saw in Half
33%inclusion163 decks487 decks
29%synergy
Dismember
26%inclusion129 decks487 decks
23%synergy
Entomb
26%inclusion125 decks487 decks
19%synergy
Rain of Filth
25%inclusion123 decks487 decks
24%synergy
Sacrifice
22%inclusion108 decks487 decks
21%synergy
Snuff Out
19%inclusion92 decks487 decks
15%synergy
Tainted Pact
18%inclusion90 decks487 decks
15%synergy
Consuming Corruption
17%inclusion81 decks487 decks
15%synergy
Infernal Grasp
15%inclusion74 decks487 decks
8%synergy
Defile
14%inclusion67 decks487 decks
11%synergy
Cut Down
14%inclusion66 decks487 decks
13%synergy
Flare of Malice
11%inclusion53 decks487 decks
8%synergy
Hagra Mauling
10%inclusion50 decks487 decks
9%synergy
Archenemy's Charm
10%inclusion49 decks487 decks
9%synergy
Not Dead After All
10%inclusion49 decks487 decks
7%synergy
Sheoldred's Edict
10%inclusion48 decks487 decks
7%synergy
Slaughter Pact
10%inclusion47 decks487 decks
9%synergy
Deadly Dispute
8.4%inclusion41 decks487 decks
-4%synergy
Go for the Throat
7.6%inclusion37 decks487 decks
1%synergy
Fatal Push
7.4%inclusion36 decks487 decks
6%synergy
Sudden Spoiling
7.2%inclusion35 decks487 decks
6%synergy
Crypt Incursion
6.6%inclusion32 decks487 decks
6%synergy
Village Rites
6.4%inclusion31 decks487 decks
-3%synergy
Feign Death
6.0%inclusion29 decks487 decks
4%synergy
Force of Despair
5.1%inclusion25 decks487 decks
4%synergy
Sorceries
Electroduplicate
100%inclusion3 decks3 decks
98%synergy
Toxic Deluge
55%inclusion268 decks487 decks
37%synergy
Doomsday
43%inclusion208 decks487 decks
42%synergy
Diabolic Intent
39%inclusion190 decks487 decks
31%synergy
Chain of Smog
36%inclusion175 decks487 decks
35%synergy
Agadeem's Awakening
35%inclusion169 decks487 decks
32%synergy
Grim Tutor
34%inclusion167 decks487 decks
30%synergy
Praetor's Grasp
33%inclusion161 decks487 decks
31%synergy
Cruel Tutor
33%inclusion160 decks487 decks
32%synergy
Insatiable Avarice
32%inclusion154 decks487 decks
29%synergy
Exsanguinate
27%inclusion133 decks487 decks
20%synergy
Peer into the Abyss
22%inclusion107 decks487 decks
20%synergy
Yawgmoth's Will
22%inclusion105 decks487 decks
20%synergy
Dark Petition
21%inclusion101 decks487 decks
20%synergy
Bubbling Muck
21%inclusion101 decks487 decks
19%synergy
Profane Tutor
20%inclusion97 decks487 decks
18%synergy
Sign in Blood
18%inclusion90 decks487 decks
10%synergy
Night's Whisper
18%inclusion90 decks487 decks
9%synergy
Damnation
13%inclusion63 decks487 decks
7%synergy
Diabolic Tutor
8.8%inclusion43 decks487 decks
3%synergy
Torment of Hailfire
8.6%inclusion42 decks487 decks
5%synergy
Victimize
8.2%inclusion40 decks487 decks
-4%synergy
Zof Consumption
7.0%inclusion34 decks487 decks
7%synergy
Pelakka Predation
7.0%inclusion34 decks487 decks
7%synergy
Blasphemous Edict
6.2%inclusion30 decks487 decks
1%synergy
Duress
5.5%inclusion27 decks487 decks
5%synergy
Persist
5.1%inclusion25 decks487 decks
3%synergy
Utility Artifacts
Wishclaw Talisman
50%inclusion245 decks487 decks
45%synergy
Defense Grid
49%inclusion239 decks487 decks
48%synergy
Bontu's Monument
43%inclusion209 decks487 decks
41%synergy
Conqueror's Flail
30%inclusion147 decks487 decks
29%synergy
Codex Shredder
28%inclusion135 decks487 decks
27%synergy
Scroll Rack
26%inclusion126 decks487 decks
25%synergy
The Darkness Crystal
26%inclusion125 decks487 decks
22%synergy
Phyrexian Altar
23%inclusion110 decks487 decks
19%synergy
Ghoulcaller's Bell
22%inclusion105 decks487 decks
21%synergy
Manifold Key
22%inclusion105 decks487 decks
20%synergy
Ashnod's Altar
19%inclusion94 decks487 decks
13%synergy
Demon's Horn
17%inclusion85 decks487 decks
17%synergy
Conjurer's Bauble
16%inclusion76 decks487 decks
15%synergy
Wand of Vertebrae
14%inclusion67 decks487 decks
14%synergy
Pyxis of Pandemonium
14%inclusion67 decks487 decks
14%synergy
Voltaic Key
12%inclusion59 decks487 decks
11%synergy
Skullclamp
12%inclusion58 decks487 decks
1%synergy
Mishra's Bauble
10%inclusion48 decks487 decks
8%synergy
Prism Ring
10%inclusion47 decks487 decks
9%synergy
Altar of Dementia
9.4%inclusion46 decks487 decks
7%synergy
Staff of the Death Magus
8.4%inclusion41 decks487 decks
8%synergy
Golem's Heart
7.4%inclusion36 decks487 decks
7%synergy
Commander's Plate
7.4%inclusion36 decks487 decks
5%synergy
Brainstone
7.2%inclusion35 decks487 decks
7%synergy
The Endstone
7.2%inclusion35 decks487 decks
6%synergy
Moonsilver Key
6.6%inclusion32 decks487 decks
6%synergy
Whip of Erebos
6.6%inclusion32 decks487 decks
3%synergy
Grinding Station
5.3%inclusion26 decks487 decks
5%synergy
Enchantments
Exquisite Blood
36%inclusion173 decks487 decks
30%synergy
Animate Dead
32%inclusion157 decks487 decks
24%synergy
Heartless Summoning
31%inclusion151 decks487 decks
30%synergy
Sanguine Bond
29%inclusion139 decks487 decks
23%synergy
Black Market Connections
28%inclusion134 decks487 decks
15%synergy
Phyrexian Arena
22%inclusion109 decks487 decks
7%synergy
The Meathook Massacre
14%inclusion69 decks487 decks
9%synergy
Font of Agonies
12%inclusion59 decks487 decks
12%synergy
Grave Pact
11%inclusion55 decks487 decks
7%synergy
Bitterblossom
11%inclusion53 decks487 decks
7%synergy
Kaya's Ghostform
9.2%inclusion45 decks487 decks
6%synergy
Bloodchief Ascension
9.2%inclusion45 decks487 decks
6%synergy
Necromancy
8.0%inclusion39 decks487 decks
5%synergy
Tombstone Stairwell
7.6%inclusion37 decks487 decks
7%synergy
Bastion of Remembrance
6.8%inclusion33 decks487 decks
0%synergy
Biotransference
6.4%inclusion31 decks487 decks
6%synergy
Dance of the Dead
6.2%inclusion30 decks487 decks
5%synergy
Planeswalkers
Professor Onyx
51%inclusion247 decks487 decks
49%synergy
Tezzeret, Cruel Captain
35%inclusion169 decks487 decks
33%synergy
Liliana Vess
16%inclusion80 decks487 decks
16%synergy
Tevesh Szat, Doom of Fools
8.2%inclusion40 decks487 decks
7%synergy
Ugin, Eye of the Storms
7.8%inclusion38 decks487 decks
7%synergy
Utility Lands
Urborg, Tomb of Yawgmoth
69%inclusion335 decks487 decks
60%synergy
Phyrexian Tower
62%inclusion300 decks487 decks
53%synergy
Cabal Coffers
50%inclusion243 decks487 decks
40%synergy
Hall of the Bandit Lord
49%inclusion237 decks487 decks
48%synergy
Urza's Saga
48%inclusion235 decks487 decks
41%synergy
Nykthos, Shrine to Nyx
41%inclusion199 decks487 decks
36%synergy
Crystal Vein
36%inclusion176 decks487 decks
35%synergy
Takenuma, Abandoned Mire
29%inclusion141 decks487 decks
20%synergy
Bojuka Bog
29%inclusion141 decks487 decks
-1%synergy
Shizo, Death's Storehouse
27%inclusion131 decks487 decks
23%synergy
City of Traitors
25%inclusion122 decks487 decks
24%synergy
Vault of Whispers
25%inclusion121 decks487 decks
21%synergy
Peat Bog
24%inclusion117 decks487 decks
24%synergy
Rogue's Passage
24%inclusion117 decks487 decks
4%synergy
Emergence Zone
20%inclusion97 decks487 decks
17%synergy
Cabal Stronghold
19%inclusion94 decks487 decks
16%synergy
Ebon Stronghold
18%inclusion87 decks487 decks
18%synergy
Lake of the Dead
18%inclusion86 decks487 decks
17%synergy
Swarmyard
13%inclusion61 decks487 decks
11%synergy
Reliquary Tower
12%inclusion58 decks487 decks
-18%synergy
Witch's Cottage
11%inclusion56 decks487 decks
8%synergy
Command Beacon
11%inclusion56 decks487 decks
7%synergy
Midgar, City of Mako
11%inclusion55 decks487 decks
8%synergy
High Market
10%inclusion48 decks487 decks
7%synergy
The Black Gate
9.4%inclusion46 decks487 decks
7%synergy
Spymaster's Vault
9.4%inclusion46 decks487 decks
7%synergy
War Room
9.4%inclusion46 decks487 decks
4%synergy
Castle Locthwain
9.2%inclusion45 decks487 decks
5%synergy
Deserted Temple
8.6%inclusion42 decks487 decks
8%synergy
Blast Zone
8.6%inclusion42 decks487 decks
8%synergy
Inventors' Fair
7.4%inclusion36 decks487 decks
4%synergy
Barad-dûr
7.0%inclusion34 decks487 decks
5%synergy
Susur Secundi, Void Altar
7.0%inclusion34 decks487 decks
5%synergy
Mortuary Mire
6.6%inclusion32 decks487 decks
2%synergy
Mana Artifacts
Sol Ring
96%inclusion467 decks487 decks
12%synergy
Arcane Signet
83%inclusion404 decks487 decks
11%synergy
Lotus Petal
58%inclusion283 decks487 decks
51%synergy
The Soul Stone
53%inclusion256 decks486 decks
49%synergy
Fellwar Stone
49%inclusion238 decks487 decks
28%synergy
Mox Opal
37%inclusion178 decks487 decks
32%synergy
Mind Stone
37%inclusion178 decks487 decks
22%synergy
Grim Monolith
29%inclusion139 decks487 decks
27%synergy
Mox Diamond
27%inclusion132 decks487 decks
23%synergy
Lion's Eye Diamond
25%inclusion122 decks487 decks
23%synergy
Mox Amber
25%inclusion122 decks487 decks
20%synergy
Jeweled Amulet
20%inclusion98 decks487 decks
20%synergy
Thought Vessel
17%inclusion83 decks487 decks
0%synergy
Chromatic Star
16%inclusion79 decks487 decks
16%synergy
Chromatic Sphere
16%inclusion77 decks487 decks
16%synergy
Everflowing Chalice
15%inclusion71 decks487 decks
10%synergy
Springleaf Drum
10%inclusion48 decks487 decks
8%synergy
Charcoal Diamond
7.0%inclusion34 decks487 decks
3%synergy
Lotus Bloom
6.8%inclusion33 decks487 decks
6%synergy
Lands
Gemstone Caverns
43%inclusion211 decks487 decks
38%synergy
Bloodstained Mire
39%inclusion191 decks487 decks
28%synergy
Polluted Delta
37%inclusion181 decks487 decks
25%synergy
Marsh Flats
36%inclusion175 decks487 decks
25%synergy
Verdant Catacombs
36%inclusion173 decks487 decks
25%synergy
Cavern of Souls
31%inclusion152 decks487 decks
24%synergy
Prismatic Vista
30%inclusion144 decks487 decks
25%synergy
Talon Gates of Madara
12%inclusion58 decks487 decks
10%synergy
Urza's Cave
7.6%inclusion37 decks487 decks
5%synergy
Command Tower
6.8%inclusion33 decks487 decks
-67%synergy
Daily Bugle Building
6.6%inclusion32 decks483 decks
6%synergy
Mana Confluence
6.6%inclusion32 decks487 decks
0%synergy
Plaza of Heroes
5.7%inclusion28 decks487 decks
3%synergy
Demolition Field
5.3%inclusion26 decks487 decks
2%synergy
Fabled Passage
5.1%inclusion25 decks487 decks
-4%synergy