Eirdu, Carrier of Dawn
Mikaeus, the Unhallowed
Altar of Dementia

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield).
You control another nontoken non-Human creature with base toughness 2 or greater.

   Steps

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

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite mill
Infinite self-mill
Eirdu, Carrier of Dawn
23%inclusion193 decks832 decks
Top Commanders
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0.2%inclusion5 decks2.67K decks
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0.4%inclusion5 decks1.20K decks
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0.1%inclusion2 decks1.67K decks
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0.1%inclusion1 decks696 decks
New Cards
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29%inclusion61 decks214 decks
28%synergy
Emptiness
24%inclusion52 decks214 decks
24%synergy
Redirect Lightning
13%inclusion1 decks8 decks
7%synergy
Haru, Hidden Talent
11%inclusion1 decks9 decks
9%synergy
Long Feng, Grand Secretariat
11%inclusion1 decks9 decks
11%synergy
High Synergy Cards
Murderous Redcap
88%inclusion7 decks8 decks
86%synergy
Ashnod's Altar
89%inclusion191 decks214 decks
83%synergy
Phyrexian Altar
84%inclusion179 decks214 decks
80%synergy
Viscera Seer
79%inclusion170 decks214 decks
71%synergy
Goblin Bombardment
75%inclusion6 decks8 decks
69%synergy
Kitchen Finks
67%inclusion6 decks9 decks
66%synergy
Elas il-Kor, Sadistic Pilgrim
75%inclusion161 decks214 decks
65%synergy
Pitiless Plunderer
72%inclusion155 decks214 decks
64%synergy
Zulaport Cutthroat
72%inclusion155 decks214 decks
64%synergy
Carrion Feeder
67%inclusion144 decks214 decks
63%synergy
Top Cards
Swords to Plowshares
71%inclusion151 decks214 decks
9%synergy
Blood Artist
70%inclusion150 decks214 decks
59%synergy
Cruel Celebrant
70%inclusion149 decks214 decks
62%synergy
Warren Soultrader
62%inclusion132 decks214 decks
56%synergy
Luminous Broodmoth
61%inclusion131 decks214 decks
59%synergy
Cathars' Crusade
60%inclusion128 decks214 decks
55%synergy
Geralf's Messenger
58%inclusion125 decks214 decks
58%synergy
Solemnity
58%inclusion125 decks214 decks
58%synergy
Dark Ritual
58%inclusion125 decks214 decks
34%synergy
Skullclamp
58%inclusion124 decks214 decks
47%synergy
Game Changers
Demonic Tutor
47%inclusion100 decks214 decks
27%synergy
Smothering Tithe
31%inclusion66 decks214 decks
9%synergy
Vampiric Tutor
29%inclusion61 decks214 decks
13%synergy
Enlightened Tutor
26%inclusion56 decks214 decks
11%synergy
Teferi's Protection
26%inclusion55 decks214 decks
9%synergy
Ancient Tomb
19%inclusion40 decks214 decks
9%synergy
The One Ring
15%inclusion33 decks214 decks
7%synergy
Imperial Seal
13%inclusion28 decks214 decks
8%synergy
Necropotence
12%inclusion25 decks214 decks
6%synergy
Chrome Mox
11%inclusion24 decks214 decks
5%synergy
Creatures
Glen Elendra Archmage
75%inclusion3 decks4 decks
73%synergy
Grim Haruspex
56%inclusion119 decks214 decks
53%synergy
Melira, Sylvok Outcast
56%inclusion5 decks9 decks
55%synergy
Woodfall Primus
56%inclusion5 decks9 decks
55%synergy
Umbral Collar Zealot
52%inclusion112 decks214 decks
49%synergy
Marionette Apprentice
51%inclusion109 decks214 decks
46%synergy
Solemn Simulacrum
51%inclusion109 decks214 decks
38%synergy
Yawgmoth, Thran Physician
49%inclusion104 decks214 decks
45%synergy
Sephiroth, Fabled SOLDIER
46%inclusion98 decks214 decks
43%synergy
Corpse Knight
45%inclusion97 decks214 decks
40%synergy
Safehold Elite
44%inclusion4 decks9 decks
44%synergy
Witch Enchanter
43%inclusion93 decks214 decks
36%synergy
Scholar of New Horizons
43%inclusion92 decks214 decks
42%synergy
Esper Sentinel
41%inclusion88 decks214 decks
22%synergy
Gray Merchant of Asphodel
40%inclusion85 decks214 decks
31%synergy
Flayer of the Hatebound
38%inclusion3 decks8 decks
37%synergy
Vizier of Remedies
36%inclusion78 decks214 decks
36%synergy
Morbid Opportunist
36%inclusion77 decks214 decks
29%synergy
Midnight Reaper
35%inclusion74 decks214 decks
31%synergy
Butcher Ghoul
34%inclusion72 decks214 decks
33%synergy
Woe Strider
34%inclusion72 decks214 decks
32%synergy
Heartmender
33%inclusion3 decks9 decks
33%synergy
Herd Baloth
33%inclusion3 decks9 decks
32%synergy
Scurry Oak
33%inclusion3 decks9 decks
32%synergy
Wight of the Reliquary
33%inclusion3 decks9 decks
28%synergy
Sakura-Tribe Elder
33%inclusion3 decks9 decks
17%synergy
Lotho, Corrupt Shirriff
32%inclusion69 decks214 decks
19%synergy
Bartolomé del Presidio
32%inclusion68 decks214 decks
27%synergy
Pawn of Ulamog
29%inclusion61 decks214 decks
27%synergy
Elenda, the Dusk Rose
27%inclusion57 decks214 decks
21%synergy
Teysa Karlov
26%inclusion55 decks214 decks
21%synergy
Sun Titan
26%inclusion55 decks214 decks
17%synergy
Charismatic Conqueror
25%inclusion54 decks214 decks
22%synergy
Junji, the Midnight Sky
21%inclusion46 decks214 decks
19%synergy
Welcoming Vampire
20%inclusion43 decks214 decks
14%synergy
Grand Abolisher
20%inclusion42 decks214 decks
10%synergy
Braids, Arisen Nightmare
19%inclusion41 decks214 decks
12%synergy
Syr Konrad, the Grim
19%inclusion41 decks214 decks
11%synergy
Zack Fair
19%inclusion40 decks214 decks
17%synergy
Loran of the Third Path
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12%synergy
Boromir, Warden of the Tower
17%inclusion37 decks214 decks
13%synergy
Accursed Marauder
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12%synergy
Solitude
17%inclusion36 decks214 decks
15%synergy
Vengeful Bloodwitch
16%inclusion34 decks214 decks
14%synergy
Yahenni, Undying Partisan
15%inclusion33 decks214 decks
12%synergy
Enduring Innocence
14%inclusion31 decks214 decks
10%synergy
Selfless Spirit
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10%synergy
Voice of Victory
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8%synergy
Karmic Guide
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10%synergy
Orcish Bowmasters
13%inclusion27 decks214 decks
4%synergy
Instants
Path to Exile
54%inclusion116 decks214 decks
7%synergy
Anguished Unmaking
51%inclusion109 decks214 decks
26%synergy
Deadly Dispute
46%inclusion99 decks214 decks
34%synergy
Generous Gift
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15%synergy
Deflecting Swat
38%inclusion3 decks8 decks
21%synergy
Village Rites
36%inclusion76 decks214 decks
26%synergy
Heroic Intervention
33%inclusion3 decks9 decks
3%synergy
Fell the Profane
29%inclusion62 decks214 decks
20%synergy
Deadly Rollick
28%inclusion60 decks214 decks
15%synergy
Malakir Rebirth
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19%synergy
Flare of Fortitude
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23%synergy
Inkshield
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19%synergy
Culling the Weak
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18%synergy
Despark
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9%synergy
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12%synergy
Corrupted Conviction
18%inclusion38 decks214 decks
13%synergy
Plumb the Forbidden
17%inclusion36 decks214 decks
14%synergy
Flawless Maneuver
14%inclusion30 decks214 decks
4%synergy
Saw in Half
12%inclusion26 decks214 decks
8%synergy
Clever Concealment
10%inclusion22 decks214 decks
6%synergy
Flare of Malice
10%inclusion21 decks214 decks
7%synergy
Reprieve
9.3%inclusion20 decks214 decks
5%synergy
Entomb
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2%synergy
Fracture
8.9%inclusion19 decks214 decks
3%synergy
Stroke of Midnight
8.4%inclusion18 decks214 decks
-2%synergy
Imp's Mischief
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4%synergy
Cabal Ritual
7.9%inclusion17 decks214 decks
3%synergy
Dawn's Truce
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1%synergy
Cauldron Haze
5.6%inclusion12 decks214 decks
5%synergy
Sorceries
Three Visits
56%inclusion5 decks9 decks
31%synergy
Diabolic Intent
46%inclusion99 decks214 decks
38%synergy
Nature's Lore
44%inclusion4 decks9 decks
13%synergy
Farseek
44%inclusion4 decks9 decks
9%synergy
Cultivate
44%inclusion4 decks9 decks
2%synergy
Reanimate
43%inclusion93 decks214 decks
25%synergy
Damn
40%inclusion85 decks214 decks
24%synergy
Victimize
39%inclusion84 decks214 decks
27%synergy
Toxic Deluge
37%inclusion79 decks214 decks
19%synergy
Kodama's Reach
33%inclusion3 decks9 decks
6%synergy
Night's Whisper
18%inclusion39 decks214 decks
9%synergy
Agadeem's Awakening
15%inclusion32 decks214 decks
12%synergy
Austere Command
13%inclusion28 decks214 decks
1%synergy
Blasphemous Edict
12%inclusion25 decks214 decks
6%synergy
Sign in Blood
11%inclusion24 decks214 decks
2%synergy
Grim Tutor
10%inclusion21 decks214 decks
6%synergy
Living Death
9.3%inclusion20 decks214 decks
4%synergy
Sevinne's Reclamation
9.3%inclusion20 decks214 decks
2%synergy
Farewell
9.3%inclusion20 decks214 decks
-3%synergy
Torment of Hailfire
7.5%inclusion16 decks214 decks
3%synergy
Wrath of God
6.5%inclusion14 decks214 decks
2%synergy
Feed the Swarm
6.5%inclusion14 decks214 decks
-10%synergy
Read the Bones
6.1%inclusion13 decks214 decks
0%synergy
Damnation
6.1%inclusion13 decks214 decks
-1%synergy
Exsanguinate
6.1%inclusion13 decks214 decks
-1%synergy
Beseech the Mirror
5.6%inclusion12 decks214 decks
2%synergy
Vindicate
5.1%inclusion11 decks214 decks
-1%synergy
Buried Alive
5.1%inclusion11 decks214 decks
-1%synergy
Utility Artifacts
The Great Henge
56%inclusion5 decks9 decks
46%synergy
Blasting Station
46%inclusion99 decks214 decks
46%synergy
Lightning Greaves
43%inclusion91 decks214 decks
18%synergy
Swiftfoot Boots
24%inclusion52 decks214 decks
-3%synergy
Bolas's Citadel
12%inclusion26 decks214 decks
4%synergy
Oketra's Monument
11%inclusion24 decks214 decks
10%synergy
Spawning Pit
9.3%inclusion20 decks214 decks
9%synergy
Jet Medallion
9.3%inclusion20 decks214 decks
6%synergy
Altar of the Brood
7.5%inclusion16 decks214 decks
6%synergy
Archaeomancer's Map
7.0%inclusion15 decks214 decks
3%synergy
Pearl Medallion
6.1%inclusion13 decks214 decks
4%synergy
Mithril Coat
5.6%inclusion12 decks214 decks
1%synergy
Enchantments
Bastion of Remembrance
56%inclusion120 decks214 decks
50%synergy
The Meathook Massacre
43%inclusion91 decks214 decks
37%synergy
Grave Pact
42%inclusion89 decks214 decks
37%synergy
Impact Tremors
38%inclusion3 decks8 decks
28%synergy
Black Market Connections
36%inclusion78 decks214 decks
25%synergy
Bitterblossom
32%inclusion69 decks214 decks
28%synergy
Phyrexian Arena
32%inclusion68 decks214 decks
16%synergy
Thran Vigil
30%inclusion64 decks214 decks
29%synergy
Land Tax
13%inclusion28 decks214 decks
7%synergy
Sothera, the Supervoid
12%inclusion26 decks214 decks
11%synergy
Dictate of Erebos
12%inclusion25 decks214 decks
9%synergy
Animate Dead
12%inclusion25 decks214 decks
3%synergy
Funeral Room // Awakening Hall
9.3%inclusion20 decks214 decks
8%synergy
Martyr's Cause
7.0%inclusion15 decks214 decks
7%synergy
Fanatical Devotion
7.0%inclusion15 decks214 decks
6%synergy
Trouble in Pairs
6.5%inclusion14 decks214 decks
2%synergy
Barrensteppe Siege
6.1%inclusion13 decks214 decks
4%synergy
Black Market
5.6%inclusion12 decks214 decks
1%synergy
Dance of the Dead
5.1%inclusion11 decks214 decks
4%synergy
Skrelv's Hive
5.1%inclusion11 decks214 decks
3%synergy
Planeswalkers
Liliana, Dreadhorde General
18%inclusion39 decks214 decks
14%synergy
Utility Lands
Mistrise Village
75%inclusion3 decks4 decks
67%synergy
Phyrexian Tower
64%inclusion136 decks214 decks
55%synergy
Urborg, Tomb of Yawgmoth
47%inclusion100 decks214 decks
38%synergy
Bojuka Bog
42%inclusion89 decks214 decks
12%synergy
High Market
31%inclusion67 decks214 decks
29%synergy
Takenuma, Abandoned Mire
29%inclusion61 decks214 decks
20%synergy
Reliquary Tower
28%inclusion59 decks214 decks
-2%synergy
Cabal Coffers
24%inclusion51 decks214 decks
14%synergy
Eiganjo, Seat of the Empire
20%inclusion43 decks214 decks
13%synergy
Susur Secundi, Void Altar
18%inclusion39 decks214 decks
16%synergy
Vault of the Archangel
15%inclusion33 decks214 decks
3%synergy
Midgar, City of Mako
15%inclusion32 decks214 decks
11%synergy
Westvale Abbey
13%inclusion27 decks214 decks
10%synergy
Nesting Grounds
12%inclusion25 decks214 decks
10%synergy
Urza's Saga
11%inclusion24 decks214 decks
4%synergy
Spymaster's Vault
10%inclusion21 decks214 decks
7%synergy
Command Beacon
8.9%inclusion19 decks214 decks
4%synergy
Nykthos, Shrine to Nyx
7.9%inclusion17 decks214 decks
3%synergy
Abandoned Air Temple
5.6%inclusion7 decks124 decks
0%synergy
Shizo, Death's Storehouse
5.1%inclusion11 decks214 decks
1%synergy
Mana Artifacts
Sol Ring
92%inclusion197 decks214 decks
8%synergy
Arcane Signet
86%inclusion185 decks214 decks
14%synergy
Talisman of Hierarchy
65%inclusion140 decks214 decks
39%synergy
Talisman of Conviction
50%inclusion4 decks8 decks
26%synergy
Talisman of Indulgence
50%inclusion4 decks8 decks
22%synergy
Orzhov Signet
49%inclusion105 decks214 decks
25%synergy
Fellwar Stone
29%inclusion61 decks214 decks
8%synergy
The Soul Stone
21%inclusion45 decks214 decks
17%synergy
Mind Stone
15%inclusion32 decks214 decks
0%synergy
Thought Vessel
14%inclusion31 decks214 decks
-3%synergy
Lotus Petal
11%inclusion24 decks214 decks
4%synergy
Mana Vault
10%inclusion21 decks214 decks
4%synergy
Mox Diamond
6.5%inclusion14 decks214 decks
2%synergy
Lands
Zagoth Triome
100%inclusion3 decks3 decks
72%synergy
Spara's Headquarters
100%inclusion3 decks3 decks
72%synergy
Jetmir's Garden
100%inclusion3 decks3 decks
71%synergy
Breeding Pool
100%inclusion3 decks3 decks
59%synergy
Command Tower
88%inclusion188 decks214 decks
14%synergy
Godless Shrine
85%inclusion181 decks214 decks
44%synergy
Indatha Triome
78%inclusion7 decks9 decks
50%synergy
Temple Garden
78%inclusion7 decks9 decks
39%synergy
Overgrown Tomb
78%inclusion7 decks9 decks
38%synergy
Savai Triome
75%inclusion6 decks8 decks
50%synergy
Hallowed Fountain
75%inclusion3 decks4 decks
36%synergy
Watery Grave
75%inclusion3 decks4 decks
34%synergy
Isolated Chapel
71%inclusion151 decks214 decks
37%synergy
Vault of Champions
66%inclusion141 decks214 decks
42%synergy
Caves of Koilos
64%inclusion137 decks214 decks
35%synergy
Marsh Flats
60%inclusion129 decks214 decks
50%synergy
Shattered Sanctum
60%inclusion128 decks214 decks
45%synergy
Fetid Heath
52%inclusion112 decks214 decks
39%synergy
Bleachbone Verge
50%inclusion108 decks214 decks
42%synergy
Sacred Foundry
50%inclusion4 decks8 decks
14%synergy
Blood Crypt
50%inclusion4 decks8 decks
13%synergy
Shadowy Backstreet
43%inclusion92 decks214 decks
33%synergy
Tainted Field
43%inclusion92 decks214 decks
30%synergy
Brightclimb Pathway
41%inclusion88 decks214 decks
33%synergy
Sulfurous Springs
38%inclusion3 decks8 decks
14%synergy
Battlefield Forge
38%inclusion3 decks8 decks
9%synergy
Underground Mortuary
33%inclusion3 decks9 decks
21%synergy
Savannah
33%inclusion3 decks9 decks
21%synergy
Bayou
33%inclusion3 decks9 decks
20%synergy
Sandsteppe Citadel
33%inclusion3 decks9 decks
8%synergy
Sunpetal Grove
33%inclusion3 decks9 decks
6%synergy
Woodland Cemetery
33%inclusion3 decks9 decks
2%synergy
Exotic Orchard
29%inclusion63 decks214 decks
-7%synergy
Shineshadow Snarl
29%inclusion61 decks214 decks
16%synergy
Silent Clearing
27%inclusion57 decks214 decks
22%synergy
Scrubland
23%inclusion50 decks214 decks
10%synergy
Orzhov Basilica
23%inclusion49 decks214 decks
8%synergy
Concealed Courtyard
22%inclusion47 decks214 decks
16%synergy
Fabled Passage
21%inclusion45 decks214 decks
12%synergy
Prismatic Vista
17%inclusion36 decks214 decks
12%synergy
Temple of Silence
17%inclusion36 decks214 decks
-1%synergy
Flooded Strand
16%inclusion35 decks214 decks
5%synergy
Desolate Mire
15%inclusion32 decks214 decks
9%synergy
Polluted Delta
14%inclusion30 decks214 decks
2%synergy
Arid Mesa
14%inclusion29 decks214 decks
3%synergy
Verdant Catacombs
13%inclusion28 decks214 decks
2%synergy
Windswept Heath
13%inclusion28 decks214 decks
2%synergy
Bloodstained Mire
12%inclusion26 decks214 decks
1%synergy
Reflecting Pool
9.3%inclusion20 decks214 decks
4%synergy
City of Brass
8.9%inclusion19 decks214 decks
1%synergy