Xathrid Necromancer
Maskwood Nexus
Altar of Dementia

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You control at least one additional creature.

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing another creature.
2
When the creature dies, Xathrid Necromancer triggers, creating a 2/2 Zombie creature token that is a Human due to Maskwood Nexus.
3
Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
4
Repeat.

   Results

What do I get from this combo?
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite mill
Infinite sacrifice triggers
Infinite self-mill
Jerren, Corrupted Bishop
0.3%inclusion3 decks873 decks
Shadowheart, Dark Justiciar // Haunted One
0.3%inclusion2 decks658 decks
Teysa Karlov
0.0%inclusion2 decks18.8K decks
Wick, the Whorled Mind
0.0%inclusion2 decks11.2K decks
Silvar, Devourer of the Free // Trynn, Champion of Freedom
0.0%inclusion2 decks4.34K decks
Varina, Lich Queen
0.0%inclusion2 decks10.3K decks
Zellix, Sanity Flayer // Scion of Halaster
0.3%inclusion1 decks374 decks
Captain N'ghathrod
0.0%inclusion1 decks16K decks
Mikaeus, the Unhallowed
0.1%inclusion1 decks1.86K decks
Vito, Thorn of the Dusk Rose
0.0%inclusion1 decks4.07K decks
Chainer, Nightmare Adept
0.0%inclusion1 decks3.19K decks
Kresh the Bloodbraided
0.0%inclusion1 decks3.61K decks
Orah, Skyclave Hierophant
0.0%inclusion1 decks3.13K decks
Wilhelt, the Rotcleaver
0.0%inclusion1 decks20.7K decks
Muldrotha, the Gravetide
0.0%inclusion1 decks21.7K decks
Zur the Enchanter
0.0%inclusion1 decks14K decks
Phenax, God of Deception
0.0%inclusion1 decks8.06K decks
Ludevic, Necro-Alchemist // Reyhan, Last of the Abzan
0.9%inclusion1 decks108 decks
New Cards
Bitterbloom Bearer
8.3%inclusion1 decks12 decks
7%synergy
High Synergy Cards
Arcane Adaptation
67%inclusion12 decks18 decks
66%synergy
Ashnod's Altar
65%inclusion28 decks43 decks
59%synergy
Goblin Bombardment
60%inclusion9 decks15 decks
54%synergy
Leyline of Transformation
55%inclusion6 decks11 decks
54%synergy
Phyrexian Altar
49%inclusion21 decks43 decks
45%synergy
Xenograft
44%inclusion8 decks18 decks
44%synergy
Zulaport Cutthroat
44%inclusion19 decks43 decks
36%synergy
Bastion of Remembrance
42%inclusion18 decks43 decks
35%synergy
Conspiracy
35%inclusion15 decks43 decks
34%synergy
Pitiless Plunderer
42%inclusion18 decks43 decks
33%synergy
Top Cards
Swords to Plowshares
74%inclusion14 decks19 decks
12%synergy
Birds of Paradise
57%inclusion4 decks7 decks
30%synergy
Blood Artist
42%inclusion18 decks43 decks
30%synergy
Viscera Seer
40%inclusion17 decks43 decks
31%synergy
An Offer You Can't Refuse
39%inclusion7 decks18 decks
14%synergy
Dark Ritual
35%inclusion15 decks43 decks
11%synergy
Artificial Evolution
33%inclusion6 decks18 decks
33%synergy
Impact Tremors
33%inclusion5 decks15 decks
24%synergy
Swan Song
33%inclusion6 decks18 decks
16%synergy
Arcane Denial
33%inclusion6 decks18 decks
13%synergy
Game Changers
Enlightened Tutor
42%inclusion8 decks19 decks
27%synergy
Rhystic Study
39%inclusion7 decks18 decks
15%synergy
Smothering Tithe
37%inclusion7 decks19 decks
15%synergy
Cyclonic Rift
33%inclusion6 decks18 decks
11%synergy
Demonic Tutor
30%inclusion13 decks43 decks
11%synergy
Vampiric Tutor
23%inclusion10 decks43 decks
8%synergy
Fierce Guardianship
22%inclusion4 decks18 decks
4%synergy
Force of Will
17%inclusion3 decks18 decks
7%synergy
Imperial Seal
14%inclusion6 decks43 decks
9%synergy
Tergrid, God of Fright
7.0%inclusion3 decks43 decks
5%synergy
Creatures
Rotlung Reanimator
33%inclusion14 decks43 decks
32%synergy
Elas il-Kor, Sadistic Pilgrim
32%inclusion6 decks19 decks
22%synergy
Teysa Karlov
26%inclusion5 decks19 decks
22%synergy
Cruel Celebrant
26%inclusion5 decks19 decks
19%synergy
Grand Abolisher
26%inclusion5 decks19 decks
17%synergy
Esper Sentinel
26%inclusion5 decks19 decks
7%synergy
Syr Konrad, the Grim
23%inclusion10 decks43 decks
15%synergy
Kambal, Profiteering Mayor
22%inclusion4 decks18 decks
17%synergy
Fiend Hunter
21%inclusion4 decks19 decks
20%synergy
Reveillark
21%inclusion4 decks19 decks
20%synergy
Teysa, Orzhov Scion
21%inclusion4 decks19 decks
19%synergy
Luminous Broodmoth
21%inclusion4 decks19 decks
18%synergy
Karmic Guide
21%inclusion4 decks19 decks
18%synergy
Mangara, the Diplomat
21%inclusion4 decks19 decks
17%synergy
Carrion Feeder
21%inclusion9 decks43 decks
17%synergy
Taurean Mauler
20%inclusion3 decks15 decks
17%synergy
Purphoros, God of the Forge
20%inclusion3 decks15 decks
16%synergy
Species Specialist
19%inclusion8 decks43 decks
18%synergy
Priest of Forgotten Gods
19%inclusion8 decks43 decks
17%synergy
Gravecrawler
19%inclusion8 decks43 decks
15%synergy
Gisa and Geralf
17%inclusion3 decks18 decks
15%synergy
Jace's Archivist
17%inclusion3 decks18 decks
15%synergy
Umbral Collar Zealot
17%inclusion3 decks18 decks
14%synergy
Diregraf Captain
17%inclusion3 decks18 decks
14%synergy
Grim Haruspex
16%inclusion7 decks43 decks
13%synergy
Ayara, First of Locthwain
16%inclusion7 decks43 decks
13%synergy
Morbid Opportunist
16%inclusion7 decks43 decks
9%synergy
Gray Merchant of Asphodel
16%inclusion7 decks43 decks
8%synergy
Mirkwood Bats
16%inclusion7 decks43 decks
7%synergy
Ayli, Eternal Pilgrim
16%inclusion3 decks19 decks
15%synergy
Ratadrabik of Urborg
16%inclusion3 decks19 decks
13%synergy
Corpse Knight
16%inclusion3 decks19 decks
10%synergy
Soul Warden
16%inclusion3 decks19 decks
10%synergy
Mother of Runes
16%inclusion3 decks19 decks
10%synergy
Sun Titan
16%inclusion3 decks19 decks
8%synergy
Woe Strider
14%inclusion6 decks43 decks
12%synergy
Reassembling Skeleton
14%inclusion6 decks43 decks
10%synergy
Warren Soultrader
14%inclusion5 decks36 decks
8%synergy
Whisper, Blood Liturgist
12%inclusion5 decks43 decks
11%synergy
Dimir House Guard
12%inclusion5 decks43 decks
11%synergy
Bloodsoaked Champion
12%inclusion5 decks43 decks
11%synergy
Doomed Necromancer
12%inclusion5 decks43 decks
11%synergy
Ghoulcaller Gisa
12%inclusion5 decks43 decks
10%synergy
Demon's Disciple
12%inclusion5 decks43 decks
10%synergy
Butcher of Malakir
12%inclusion5 decks43 decks
9%synergy
Yawgmoth, Thran Physician
12%inclusion5 decks43 decks
8%synergy
Plaguecrafter
12%inclusion5 decks43 decks
7%synergy
Sheoldred, the Apocalypse
12%inclusion5 decks43 decks
6%synergy
Solemn Simulacrum
12%inclusion5 decks43 decks
-1%synergy
Shadow-Rite Priest
9.3%inclusion4 decks43 decks
9%synergy
Instants
Counterspell
33%inclusion6 decks18 decks
-9%synergy
Mana Drain
28%inclusion5 decks18 decks
13%synergy
Path to Exile
26%inclusion5 decks19 decks
-21%synergy
Muddle the Mixture
22%inclusion4 decks18 decks
18%synergy
Negate
22%inclusion4 decks18 decks
1%synergy
Anguished Unmaking
21%inclusion4 decks19 decks
-3%synergy
Pyroblast
20%inclusion3 decks15 decks
14%synergy
Chaos Warp
20%inclusion3 decks15 decks
-10%synergy
Malakir Rebirth
19%inclusion8 decks43 decks
10%synergy
Pact of Negation
17%inclusion3 decks18 decks
10%synergy
Force of Negation
17%inclusion3 decks18 decks
9%synergy
Pongify
17%inclusion3 decks18 decks
5%synergy
Mystical Tutor
17%inclusion3 decks18 decks
4%synergy
Brainstorm
17%inclusion3 decks18 decks
-2%synergy
Dire Tactics
16%inclusion3 decks19 decks
15%synergy
Silence
16%inclusion3 decks19 decks
9%synergy
Inkshield
16%inclusion3 decks19 decks
9%synergy
Akroma's Will
16%inclusion3 decks19 decks
6%synergy
Stroke of Midnight
16%inclusion3 decks19 decks
5%synergy
Despark
16%inclusion3 decks19 decks
2%synergy
Withering Torment
15%inclusion4 decks27 decks
7%synergy
Entomb
14%inclusion6 decks43 decks
7%synergy
Hagra Mauling
9.3%inclusion4 decks43 decks
8%synergy
Cabal Ritual
9.3%inclusion4 decks43 decks
4%synergy
Village Rites
9.3%inclusion4 decks43 decks
0%synergy
Deadly Dispute
9.3%inclusion4 decks43 decks
-3%synergy
Deadly Rollick
9.3%inclusion4 decks43 decks
-4%synergy
Fell the Profane
8.3%inclusion3 decks36 decks
-1%synergy
Snuff Out
7.0%inclusion3 decks43 decks
4%synergy
Tragic Slip
7.0%inclusion3 decks43 decks
3%synergy
Go for the Throat
7.0%inclusion3 decks43 decks
0%synergy
Sorceries
Blasphemous Act
33%inclusion5 decks15 decks
0%synergy
Feed the Swarm
30%inclusion13 decks43 decks
14%synergy
Reanimate
28%inclusion12 decks43 decks
9%synergy
Victimize
26%inclusion11 decks43 decks
13%synergy
Grim Tutor
21%inclusion9 decks43 decks
17%synergy
Diabolic Tutor
19%inclusion8 decks43 decks
13%synergy
Diabolic Intent
19%inclusion8 decks43 decks
11%synergy
Toxic Deluge
19%inclusion8 decks43 decks
0%synergy
Preordain
17%inclusion3 decks18 decks
7%synergy
Ponder
17%inclusion3 decks18 decks
5%synergy
Sign in Blood
16%inclusion7 decks43 decks
7%synergy
Buried Alive
14%inclusion6 decks43 decks
8%synergy
Beseech the Mirror
12%inclusion5 decks43 decks
8%synergy
Read the Bones
12%inclusion5 decks43 decks
6%synergy
Blasphemous Edict
11%inclusion3 decks27 decks
5%synergy
Dimir Machinations
9.3%inclusion4 decks43 decks
9%synergy
Torment of Hailfire
9.3%inclusion4 decks43 decks
5%synergy
Rise of the Dark Realms
9.3%inclusion4 decks43 decks
5%synergy
Damnation
9.3%inclusion4 decks43 decks
3%synergy
Dread Summons
7.0%inclusion3 decks43 decks
6%synergy
Bone Shards
7.0%inclusion3 decks43 decks
6%synergy
Crippling Fear
7.0%inclusion3 decks43 decks
5%synergy
Profane Tutor
7.0%inclusion3 decks43 decks
5%synergy
Patriarch's Bidding
7.0%inclusion3 decks43 decks
5%synergy
Agadeem's Awakening
7.0%inclusion3 decks43 decks
4%synergy
Unearth
7.0%inclusion3 decks43 decks
4%synergy
Living Death
7.0%inclusion3 decks43 decks
2%synergy
Exsanguinate
7.0%inclusion3 decks43 decks
0%synergy
Night's Whisper
7.0%inclusion3 decks43 decks
-2%synergy
Utility Artifacts
Skullclamp
28%inclusion12 decks43 decks
17%synergy
Altar of the Brood
19%inclusion8 decks43 decks
17%synergy
Lightning Greaves
19%inclusion8 decks43 decks
-6%synergy
Blasting Station
16%inclusion7 decks43 decks
16%synergy
Bontu's Monument
16%inclusion7 decks43 decks
14%synergy
Jet Medallion
14%inclusion6 decks43 decks
10%synergy
Swiftfoot Boots
14%inclusion6 decks43 decks
-13%synergy
Nim Deathmantle
12%inclusion5 decks43 decks
11%synergy
Mindcrank
12%inclusion5 decks43 decks
10%synergy
Wishclaw Talisman
12%inclusion5 decks43 decks
6%synergy
Bolas's Citadel
12%inclusion5 decks43 decks
4%synergy
Relic Vial
7.0%inclusion3 decks43 decks
7%synergy
Desecrated Tomb
7.0%inclusion3 decks43 decks
7%synergy
Realmbreaker, the Invasion Tree
7.0%inclusion3 decks43 decks
7%synergy
Thornbite Staff
7.0%inclusion3 decks43 decks
6%synergy
Mesmeric Orb
7.0%inclusion3 decks43 decks
6%synergy
Thousand-Year Elixir
7.0%inclusion3 decks43 decks
5%synergy
The Ozolith
7.0%inclusion3 decks43 decks
3%synergy
Enchantments
Molten Echoes
27%inclusion4 decks15 decks
25%synergy
Mystic Remora
22%inclusion4 decks18 decks
6%synergy
Phyrexian Arena
21%inclusion9 decks43 decks
5%synergy
Black Market
19%inclusion8 decks43 decks
14%synergy
Grave Pact
19%inclusion8 decks43 decks
14%synergy
Black Market Connections
19%inclusion8 decks43 decks
7%synergy
Rooftop Storm
17%inclusion3 decks18 decks
15%synergy
Anointed Procession
16%inclusion3 decks19 decks
9%synergy
Dictate of Erebos
14%inclusion6 decks43 decks
11%synergy
Phyrexian Reclamation
14%inclusion6 decks43 decks
11%synergy
The Meathook Massacre
12%inclusion5 decks43 decks
6%synergy
Animate Dead
12%inclusion5 decks43 decks
3%synergy
Funeral Room // Awakening Hall
10%inclusion3 decks29 decks
9%synergy
Agent of the Iron Throne
9.3%inclusion4 decks43 decks
8%synergy
Sanguine Bond
9.3%inclusion4 decks43 decks
4%synergy
Liliana's Contract
7.0%inclusion3 decks43 decks
6%synergy
Open the Graves
7.0%inclusion3 decks43 decks
6%synergy
Tortured Existence
7.0%inclusion3 decks43 decks
5%synergy
Dreadhorde Invasion
7.0%inclusion3 decks43 decks
5%synergy
Bitterblossom
7.0%inclusion3 decks43 decks
3%synergy
Exquisite Blood
7.0%inclusion3 decks43 decks
2%synergy
Planeswalkers
Liliana, Dreadhorde General
23%inclusion10 decks43 decks
20%synergy
Utility Lands
Bojuka Bog
40%inclusion17 decks43 decks
10%synergy
Urborg, Tomb of Yawgmoth
30%inclusion13 decks43 decks
21%synergy
Cabal Coffers
28%inclusion12 decks43 decks
18%synergy
Reliquary Tower
28%inclusion12 decks43 decks
-2%synergy
Otawara, Soaring City
22%inclusion4 decks18 decks
6%synergy
Phyrexian Tower
19%inclusion8 decks43 decks
10%synergy
Castle Ardenvale
16%inclusion3 decks19 decks
11%synergy
Westvale Abbey
14%inclusion6 decks43 decks
12%synergy
Castle Locthwain
14%inclusion6 decks43 decks
10%synergy
Command Beacon
9.3%inclusion4 decks43 decks
4%synergy
Nykthos, Shrine to Nyx
9.3%inclusion4 decks43 decks
4%synergy
Takenuma, Abandoned Mire
9.3%inclusion4 decks43 decks
1%synergy
Temple of the False God
9.3%inclusion4 decks43 decks
0%synergy
Ancient Tomb
9.3%inclusion4 decks43 decks
0%synergy
Rogue's Passage
9.3%inclusion4 decks43 decks
-11%synergy
Three Tree City
8.8%inclusion3 decks34 decks
4%synergy
Crypt of Agadeem
7.0%inclusion3 decks43 decks
5%synergy
Barad-dûr
7.0%inclusion3 decks43 decks
5%synergy
High Market
7.0%inclusion3 decks43 decks
4%synergy
Witch's Cottage
7.0%inclusion3 decks43 decks
4%synergy
War Room
7.0%inclusion3 decks43 decks
1%synergy
Urza's Saga
7.0%inclusion3 decks43 decks
0%synergy
Mana Artifacts
Sol Ring
84%inclusion36 decks43 decks
0%synergy
Arcane Signet
65%inclusion28 decks43 decks
-7%synergy
Dimir Signet
39%inclusion7 decks18 decks
14%synergy
Orzhov Signet
37%inclusion7 decks19 decks
13%synergy
Talisman of Dominance
33%inclusion6 decks18 decks
1%synergy
Talisman of Hierarchy
26%inclusion5 decks19 decks
0%synergy
Fellwar Stone
23%inclusion10 decks43 decks
3%synergy
Mind Stone
14%inclusion6 decks43 decks
-1%synergy
Thought Vessel
14%inclusion6 decks43 decks
-3%synergy
Commander's Sphere
12%inclusion5 decks43 decks
0%synergy
Mana Crypt
7.0%inclusion3 decks43 decks
5%synergy
Mana Vault
7.0%inclusion3 decks43 decks
1%synergy
Chromatic Lantern
7.0%inclusion3 decks43 decks
-2%synergy
Lands
Ziatora's Proving Ground
75%inclusion3 decks4 decks
48%synergy
Zagoth Triome
75%inclusion3 decks4 decks
47%synergy
Overgrown Tomb
71%inclusion5 decks7 decks
31%synergy
Watery Grave
67%inclusion12 decks18 decks
25%synergy
Command Tower
65%inclusion28 decks43 decks
-9%synergy
Tundra
57%inclusion4 decks7 decks
43%synergy
Raffine's Tower
57%inclusion4 decks7 decks
33%synergy
Hallowed Fountain
57%inclusion4 decks7 decks
17%synergy
Godless Shrine
53%inclusion10 decks19 decks
11%synergy
Drowned Catacomb
50%inclusion9 decks18 decks
21%synergy
Scrubland
47%inclusion9 decks19 decks
34%synergy
Underground Sea
44%inclusion8 decks18 decks
30%synergy
Savai Triome
43%inclusion3 decks7 decks
19%synergy
Sea of Clouds
43%inclusion3 decks7 decks
18%synergy
Nomad Outpost
43%inclusion3 decks7 decks
13%synergy
Woodland Cemetery
43%inclusion3 decks7 decks
11%synergy
Shipwreck Marsh
39%inclusion7 decks18 decks
21%synergy
Morphic Pool
39%inclusion7 decks18 decks
15%synergy
Isolated Chapel
37%inclusion7 decks19 decks
3%synergy
Polluted Delta
35%inclusion15 decks43 decks
23%synergy
Caves of Koilos
32%inclusion6 decks19 decks
2%synergy
Underground River
28%inclusion5 decks18 decks
5%synergy
Sulfurous Springs
27%inclusion4 decks15 decks
3%synergy
Dragonskull Summit
27%inclusion4 decks15 decks
-8%synergy
Blood Crypt
27%inclusion4 decks15 decks
-11%synergy
Tainted Field
26%inclusion5 decks19 decks
13%synergy
Temple of Silence
26%inclusion5 decks19 decks
9%synergy
Vault of Champions
26%inclusion5 decks19 decks
2%synergy
Bloodstained Mire
26%inclusion11 decks43 decks
14%synergy
Marsh Flats
23%inclusion10 decks43 decks
13%synergy
Verdant Catacombs
23%inclusion10 decks43 decks
12%synergy
Path of Ancestry
23%inclusion10 decks43 decks
1%synergy
Temple of Deceit
22%inclusion4 decks18 decks
8%synergy
Sunken Hollow
22%inclusion4 decks18 decks
-11%synergy
Orzhov Basilica
21%inclusion4 decks19 decks
7%synergy
Flooded Strand
21%inclusion9 decks43 decks
10%synergy
Exotic Orchard
21%inclusion9 decks43 decks
-16%synergy
Smoldering Marsh
20%inclusion3 decks15 decks
-14%synergy
Darkslick Shores
17%inclusion3 decks18 decks
12%synergy
Desolate Mire
17%inclusion3 decks18 decks
10%synergy
Clearwater Pathway
17%inclusion3 decks18 decks
9%synergy
Tainted Isle
17%inclusion3 decks18 decks
6%synergy
Misty Rainforest
16%inclusion7 decks43 decks
5%synergy
Concealed Courtyard
16%inclusion3 decks19 decks
10%synergy
Shadowy Backstreet
16%inclusion3 decks19 decks
6%synergy
Shineshadow Snarl
16%inclusion3 decks19 decks
3%synergy
Shattered Sanctum
16%inclusion3 decks19 decks
1%synergy
City of Brass
14%inclusion6 decks43 decks
6%synergy
Arid Mesa
14%inclusion6 decks43 decks
4%synergy
Scalding Tarn
14%inclusion6 decks43 decks
3%synergy