Eirdu, Carrier of Dawn
Altar of Dementia
Sightless Ghoul

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield and Sightless Ghoul without a +1/+1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing Sightless Ghoul
2
When Sightless Ghoul dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3
Activate Altar of Dementia by sacrificing Sightless Ghoul
4
When Sightless Ghoul dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5
Resolve both Altar of Dementia abilities from step 1 and 3.
6
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite death triggers
Infinite mill
Infinite sacrifice triggers
Infinite self-mill
Eirdu, Carrier of Dawn
1.0%inclusion41 decks4.22K decks
Celes, Rune Knight
0.0%inclusion1 decks5.12K decks
Oloro, Ageless Ascetic
0.0%inclusion1 decks8.41K decks
New Cards
Emeritus of Woe
50%inclusion1 decks2 decks
47%synergy
Scheming Silvertongue
50%inclusion1 decks2 decks
48%synergy
Erode
25%inclusion1 decks4 decks
22%synergy
Grave Researcher
25%inclusion1 decks4 decks
22%synergy
Splinter's Technique
3.8%inclusion1 decks26 decks
3%synergy
High Synergy Cards
Geralf's Messenger
93%inclusion40 decks43 decks
93%synergy
Butcher Ghoul
88%inclusion38 decks43 decks
88%synergy
Ashnod's Altar
86%inclusion37 decks43 decks
80%synergy
Viscera Seer
81%inclusion35 decks43 decks
73%synergy
Zulaport Cutthroat
81%inclusion35 decks43 decks
73%synergy
Phyrexian Altar
74%inclusion32 decks43 decks
71%synergy
Mikaeus, the Unhallowed
70%inclusion30 decks43 decks
67%synergy
Blood Artist
74%inclusion32 decks43 decks
63%synergy
Elas il-Kor, Sadistic Pilgrim
72%inclusion31 decks43 decks
63%synergy
Cruel Celebrant
67%inclusion29 decks43 decks
60%synergy
Top Cards
Swords to Plowshares
77%inclusion33 decks43 decks
16%synergy
Path to Exile
65%inclusion28 decks43 decks
18%synergy
Carrion Feeder
63%inclusion27 decks43 decks
58%synergy
Pitiless Plunderer
63%inclusion27 decks43 decks
54%synergy
Evernight Shade
58%inclusion25 decks43 decks
58%synergy
Solemnity
58%inclusion25 decks43 decks
57%synergy
Bastion of Remembrance
58%inclusion25 decks43 decks
51%synergy
Umbral Collar Zealot
56%inclusion24 decks43 decks
53%synergy
Skullclamp
56%inclusion24 decks43 decks
45%synergy
Dark Ritual
53%inclusion23 decks43 decks
29%synergy
Game Changers
Demonic Tutor
28%inclusion12 decks43 decks
9%synergy
Enlightened Tutor
21%inclusion9 decks43 decks
6%synergy
Smothering Tithe
21%inclusion9 decks43 decks
0%synergy
Vampiric Tutor
19%inclusion8 decks43 decks
4%synergy
Necropotence
12%inclusion5 decks43 decks
7%synergy
The One Ring
9.3%inclusion4 decks43 decks
1%synergy
Ancient Tomb
9.3%inclusion4 decks43 decks
0%synergy
Imperial Seal
7.0%inclusion3 decks43 decks
2%synergy
Mana Vault
7.0%inclusion3 decks43 decks
1%synergy
Bolas's Citadel
7.0%inclusion3 decks43 decks
-1%synergy
Creatures
Corpse Knight
51%inclusion22 decks43 decks
46%synergy
Woe Strider
49%inclusion21 decks43 decks
47%synergy
Marionette Apprentice
49%inclusion21 decks43 decks
44%synergy
Bartolomé del Presidio
47%inclusion20 decks43 decks
42%synergy
Hancock, Ghoulish Mayor
44%inclusion19 decks43 decks
44%synergy
Luminous Broodmoth
44%inclusion19 decks43 decks
41%synergy
Warren Soultrader
44%inclusion19 decks43 decks
39%synergy
Grim Haruspex
42%inclusion18 decks43 decks
39%synergy
Vizier of Remedies
37%inclusion16 decks43 decks
37%synergy
Solemn Simulacrum
37%inclusion16 decks43 decks
25%synergy
Zack Fair
35%inclusion15 decks43 decks
33%synergy
Vengeful Bloodwitch
35%inclusion15 decks43 decks
33%synergy
Gray Merchant of Asphodel
35%inclusion15 decks43 decks
26%synergy
Yahenni, Undying Partisan
33%inclusion14 decks43 decks
30%synergy
Rhys, the Evermore
31%inclusion9 decks29 decks
30%synergy
Elenda, the Dusk Rose
30%inclusion13 decks43 decks
25%synergy
Morbid Opportunist
30%inclusion13 decks43 decks
22%synergy
Esper Sentinel
30%inclusion13 decks43 decks
11%synergy
Vengeful Vampire
28%inclusion12 decks43 decks
28%synergy
Scholar of New Horizons
28%inclusion12 decks43 decks
27%synergy
Sephiroth, Fabled SOLDIER
28%inclusion12 decks43 decks
26%synergy
Yawgmoth, Thran Physician
28%inclusion12 decks43 decks
25%synergy
Teysa Karlov
28%inclusion12 decks43 decks
23%synergy
Syr Konrad, the Grim
28%inclusion12 decks43 decks
20%synergy
Midnight Reaper
26%inclusion11 decks43 decks
23%synergy
Dockworker Drone
23%inclusion10 decks43 decks
23%synergy
Treacherous Pit-Dweller
21%inclusion9 decks43 decks
21%synergy
Junji, the Midnight Sky
21%inclusion9 decks43 decks
18%synergy
Ayara, First of Locthwain
21%inclusion9 decks43 decks
18%synergy
Sun Titan
21%inclusion9 decks43 decks
13%synergy
Triskelion
19%inclusion8 decks43 decks
18%synergy
Lotho, Corrupt Shirriff
19%inclusion8 decks43 decks
6%synergy
Endling
16%inclusion7 decks43 decks
16%synergy
Emptiness
16%inclusion7 decks43 decks
16%synergy
Bitterbloom Bearer
16%inclusion7 decks43 decks
14%synergy
Accursed Marauder
16%inclusion7 decks43 decks
11%synergy
Braids, Arisen Nightmare
16%inclusion7 decks43 decks
9%synergy
Witch Enchanter
16%inclusion7 decks43 decks
9%synergy
Grand Abolisher
16%inclusion7 decks43 decks
7%synergy
Demonlord of Ashmouth
14%inclusion6 decks43 decks
14%synergy
Selfless Police Captain
14%inclusion6 decks43 decks
14%synergy
Agent Venom
14%inclusion6 decks43 decks
13%synergy
Boggart Trawler
14%inclusion6 decks43 decks
10%synergy
Voice of Victory
14%inclusion6 decks43 decks
7%synergy
Rakdos Drake
12%inclusion5 decks43 decks
12%synergy
Blacksnag Buzzard
12%inclusion5 decks43 decks
12%synergy
Bloodflow Connoisseur
12%inclusion5 decks43 decks
11%synergy
Pawn of Ulamog
12%inclusion5 decks43 decks
10%synergy
Gravecrawler
12%inclusion5 decks43 decks
8%synergy
Selfless Spirit
12%inclusion5 decks43 decks
7%synergy
Instants
Deadly Dispute
37%inclusion16 decks43 decks
25%synergy
Anguished Unmaking
35%inclusion15 decks43 decks
10%synergy
Undying Evil
28%inclusion12 decks43 decks
27%synergy
Village Rites
26%inclusion11 decks43 decks
16%synergy
Deadly Rollick
26%inclusion11 decks43 decks
12%synergy
Fell the Profane
23%inclusion10 decks43 decks
14%synergy
Despark
23%inclusion10 decks43 decks
10%synergy
Corrupted Conviction
21%inclusion9 decks43 decks
16%synergy
Flare of Fortitude
19%inclusion8 decks43 decks
15%synergy
Culling the Weak
19%inclusion8 decks43 decks
14%synergy
Silence
19%inclusion8 decks43 decks
12%synergy
Generous Gift
19%inclusion8 decks43 decks
-3%synergy
Cabal Ritual
16%inclusion7 decks43 decks
11%synergy
Fracture
14%inclusion6 decks43 decks
9%synergy
Entomb
14%inclusion6 decks43 decks
7%synergy
Inkshield
14%inclusion6 decks43 decks
7%synergy
Mortify
14%inclusion6 decks43 decks
3%synergy
Dawn's Truce
12%inclusion5 decks43 decks
5%synergy
Malakir Rebirth
12%inclusion5 decks43 decks
3%synergy
Teferi's Protection
12%inclusion5 decks43 decks
-5%synergy
Cauldron Haze
9.3%inclusion4 decks43 decks
9%synergy
Feign Death
7.0%inclusion3 decks43 decks
5%synergy
Flare of Malice
7.0%inclusion3 decks43 decks
5%synergy
Plumb the Forbidden
7.0%inclusion3 decks43 decks
4%synergy
Restoration Magic
7.0%inclusion3 decks43 decks
3%synergy
Saw in Half
7.0%inclusion3 decks43 decks
3%synergy
Reprieve
7.0%inclusion3 decks43 decks
3%synergy
Go for the Throat
7.0%inclusion3 decks43 decks
1%synergy
Stroke of Midnight
7.0%inclusion3 decks43 decks
-3%synergy
Flawless Maneuver
7.0%inclusion3 decks43 decks
-4%synergy
Sorceries
Damn
40%inclusion17 decks43 decks
25%synergy
Diabolic Intent
37%inclusion16 decks43 decks
30%synergy
Night's Whisper
33%inclusion14 decks43 decks
23%synergy
Reanimate
30%inclusion13 decks43 decks
11%synergy
Victimize
23%inclusion10 decks43 decks
11%synergy
Blasphemous Edict
19%inclusion8 decks43 decks
13%synergy
Sign in Blood
19%inclusion8 decks43 decks
10%synergy
Diabolic Tutor
16%inclusion7 decks43 decks
11%synergy
Toxic Deluge
16%inclusion7 decks43 decks
-2%synergy
Grim Tutor
14%inclusion6 decks43 decks
10%synergy
Sevinne's Reclamation
14%inclusion6 decks43 decks
7%synergy
Austere Command
14%inclusion6 decks43 decks
2%synergy
Insatiable Avarice
12%inclusion5 decks43 decks
9%synergy
Damnation
12%inclusion5 decks43 decks
5%synergy
Agadeem's Awakening
9.3%inclusion4 decks43 decks
6%synergy
Read the Bones
9.3%inclusion4 decks43 decks
4%synergy
Vindicate
9.3%inclusion4 decks43 decks
3%synergy
Feed the Swarm
9.3%inclusion4 decks43 decks
-7%synergy
Beseech the Mirror
7.0%inclusion3 decks43 decks
4%synergy
Idyllic Tutor
7.0%inclusion3 decks43 decks
3%synergy
Living Death
7.0%inclusion3 decks43 decks
2%synergy
Exsanguinate
7.0%inclusion3 decks43 decks
0%synergy
Utility Artifacts
Blasting Station
42%inclusion18 decks43 decks
41%synergy
Lightning Greaves
33%inclusion14 decks43 decks
8%synergy
Swiftfoot Boots
33%inclusion14 decks43 decks
6%synergy
Jet Medallion
19%inclusion8 decks43 decks
15%synergy
Spawning Pit
16%inclusion7 decks43 decks
16%synergy
Pearl Medallion
14%inclusion6 decks43 decks
11%synergy
Wishclaw Talisman
12%inclusion5 decks43 decks
7%synergy
Altar of the Brood
9.3%inclusion4 decks43 decks
8%synergy
Archaeomancer's Map
7.0%inclusion3 decks43 decks
3%synergy
Enchantments
Cathars' Crusade
40%inclusion17 decks43 decks
34%synergy
Phyrexian Arena
28%inclusion12 decks43 decks
13%synergy
The Meathook Massacre
23%inclusion10 decks43 decks
18%synergy
Black Market Connections
23%inclusion10 decks43 decks
11%synergy
Thran Vigil
21%inclusion9 decks43 decks
20%synergy
Grave Pact
19%inclusion8 decks43 decks
14%synergy
Martyr's Cause
14%inclusion6 decks43 decks
14%synergy
Sothera, the Supervoid
14%inclusion6 decks43 decks
13%synergy
Land Tax
14%inclusion6 decks43 decks
8%synergy
Fanatical Devotion
12%inclusion5 decks43 decks
11%synergy
Haunted One
12%inclusion5 decks43 decks
11%synergy
Dictate of Erebos
12%inclusion5 decks43 decks
9%synergy
Bitterblossom
12%inclusion5 decks43 decks
7%synergy
Animate Dead
12%inclusion5 decks43 decks
3%synergy
Black Market
7.0%inclusion3 decks43 decks
3%synergy
Exquisite Blood
7.0%inclusion3 decks43 decks
2%synergy
Sanguine Bond
7.0%inclusion3 decks43 decks
2%synergy
Blind Obedience
7.0%inclusion3 decks43 decks
1%synergy
Planeswalkers
Liliana, Dreadhorde General
23%inclusion10 decks43 decks
20%synergy
Utility Lands
Phyrexian Tower
33%inclusion14 decks43 decks
24%synergy
Bojuka Bog
33%inclusion14 decks43 decks
3%synergy
Reliquary Tower
28%inclusion12 decks43 decks
-2%synergy
Urborg, Tomb of Yawgmoth
23%inclusion10 decks43 decks
14%synergy
Susur Secundi, Void Altar
16%inclusion7 decks43 decks
14%synergy
High Market
14%inclusion6 decks43 decks
11%synergy
Midgar, City of Mako
12%inclusion5 decks43 decks
8%synergy
Eiganjo, Seat of the Empire
12%inclusion5 decks43 decks
5%synergy
Takenuma, Abandoned Mire
12%inclusion5 decks43 decks
3%synergy
Cabal Coffers
12%inclusion5 decks43 decks
2%synergy
Abandoned Air Temple
11%inclusion4 decks35 decks
7%synergy
Vault of the Archangel
9.3%inclusion4 decks43 decks
-3%synergy
Rogue's Passage
9.3%inclusion4 decks43 decks
-11%synergy
Mana Artifacts
Sol Ring
93%inclusion40 decks43 decks
9%synergy
Arcane Signet
84%inclusion36 decks43 decks
12%synergy
Talisman of Hierarchy
67%inclusion29 decks43 decks
41%synergy
Orzhov Signet
51%inclusion22 decks43 decks
29%synergy
Fellwar Stone
44%inclusion19 decks43 decks
24%synergy
Mind Stone
37%inclusion16 decks43 decks
23%synergy
Thought Vessel
28%inclusion12 decks43 decks
11%synergy
Charcoal Diamond
19%inclusion8 decks43 decks
15%synergy
The Soul Stone
19%inclusion8 decks43 decks
14%synergy
Marble Diamond
16%inclusion7 decks43 decks
13%synergy
Commander's Sphere
14%inclusion6 decks43 decks
3%synergy
Lotus Petal
7.0%inclusion3 decks43 decks
0%synergy
Lands
Command Tower
84%inclusion36 decks43 decks
9%synergy
Godless Shrine
74%inclusion32 decks43 decks
33%synergy
Caves of Koilos
65%inclusion28 decks43 decks
36%synergy
Isolated Chapel
60%inclusion26 decks43 decks
26%synergy
Fetid Heath
56%inclusion24 decks43 decks
42%synergy
Vault of Champions
51%inclusion22 decks43 decks
28%synergy
Bleachbone Verge
47%inclusion20 decks43 decks
38%synergy
Tainted Field
47%inclusion20 decks43 decks
34%synergy
Shattered Sanctum
44%inclusion19 decks43 decks
29%synergy
Marsh Flats
35%inclusion15 decks43 decks
24%synergy
Brightclimb Pathway
33%inclusion14 decks43 decks
24%synergy
Exotic Orchard
33%inclusion14 decks43 decks
-4%synergy
Temple of Silence
30%inclusion13 decks43 decks
13%synergy
Shadowy Backstreet
28%inclusion12 decks43 decks
18%synergy
Desolate Mire
26%inclusion11 decks43 decks
19%synergy
Shineshadow Snarl
26%inclusion11 decks43 decks
13%synergy
Concealed Courtyard
23%inclusion10 decks43 decks
17%synergy
Orzhov Basilica
21%inclusion9 decks43 decks
7%synergy
Silent Clearing
19%inclusion8 decks43 decks
14%synergy
Reflecting Pool
16%inclusion7 decks43 decks
11%synergy
Prismatic Vista
12%inclusion5 decks43 decks
7%synergy
City of Brass
12%inclusion5 decks43 decks
4%synergy
Path of Ancestry
12%inclusion5 decks43 decks
-11%synergy
Sunlit Marsh
9.3%inclusion4 decks43 decks
5%synergy
Fabled Passage
9.3%inclusion4 decks43 decks
0%synergy
Scrubland
9.3%inclusion4 decks43 decks
-4%synergy
Myriad Landscape
9.3%inclusion4 decks43 decks
-6%synergy
Evolving Wilds
9.3%inclusion4 decks43 decks
-11%synergy
Snowfield Sinkhole
7.0%inclusion3 decks43 decks
5%synergy
Plaza of Heroes
7.0%inclusion3 decks43 decks
4%synergy
Mana Confluence
7.0%inclusion3 decks43 decks
0%synergy
Verdant Catacombs
7.0%inclusion3 decks43 decks
-4%synergy
Flooded Strand
7.0%inclusion3 decks43 decks
-4%synergy
Polluted Delta
7.0%inclusion3 decks43 decks
-5%synergy