Eirdu, Carrier of Dawn
Mikaeus, the Unhallowed
Phyrexian Altar

   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 Phyrexian Altar 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 Phyrexian Altar 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
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite colored mana
Infinite sacrifice triggers
Infinite death triggers
Eirdu, Carrier of Dawn
32%inclusion180 decks563 decks
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New Cards
Bitterbloom Bearer
34%inclusion68 decks200 decks
33%synergy
Emptiness
21%inclusion41 decks200 decks
20%synergy
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17%inclusion1 decks6 decks
15%synergy
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17%inclusion1 decks6 decks
16%synergy
Morningtide's Light
6.5%inclusion13 decks200 decks
6%synergy
High Synergy Cards
Murderous Redcap
86%inclusion6 decks7 decks
84%synergy
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86%inclusion6 decks7 decks
80%synergy
Ashnod's Altar
87%inclusion173 decks200 decks
80%synergy
The Great Henge
83%inclusion5 decks6 decks
74%synergy
Melira, Sylvok Outcast
67%inclusion4 decks6 decks
66%synergy
Kitchen Finks
67%inclusion4 decks6 decks
66%synergy
Viscera Seer
73%inclusion146 decks200 decks
65%synergy
Elas il-Kor, Sadistic Pilgrim
72%inclusion144 decks200 decks
62%synergy
Warren Soultrader
65%inclusion130 decks200 decks
59%synergy
Zulaport Cutthroat
68%inclusion135 decks200 decks
59%synergy
Top Cards
Swords to Plowshares
73%inclusion146 decks200 decks
11%synergy
Three Visits
67%inclusion4 decks6 decks
42%synergy
Nature's Lore
67%inclusion4 decks6 decks
35%synergy
Farseek
67%inclusion4 decks6 decks
31%synergy
Pitiless Plunderer
67%inclusion133 decks200 decks
58%synergy
Blood Artist
66%inclusion131 decks200 decks
54%synergy
Cruel Celebrant
62%inclusion123 decks200 decks
54%synergy
Luminous Broodmoth
60%inclusion119 decks200 decks
57%synergy
Cathars' Crusade
59%inclusion117 decks200 decks
53%synergy
Carrion Feeder
57%inclusion115 decks200 decks
53%synergy
Game Changers
Demonic Tutor
48%inclusion95 decks200 decks
28%synergy
Jeska's Will
43%inclusion3 decks7 decks
27%synergy
Vampiric Tutor
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Smothering Tithe
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Enlightened Tutor
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Teferi's Protection
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6%synergy
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Necropotence
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Creatures
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53%synergy
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49%synergy
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46%synergy
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42%synergy
Grim Haruspex
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44%synergy
Solemn Simulacrum
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34%synergy
Umbral Collar Zealot
46%inclusion91 decks200 decks
43%synergy
Yawgmoth, Thran Physician
45%inclusion90 decks200 decks
42%synergy
Marionette Apprentice
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40%synergy
Chainer, Nightmare Adept
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38%synergy
Witch Enchanter
40%inclusion80 decks200 decks
33%synergy
Gray Merchant of Asphodel
38%inclusion76 decks200 decks
29%synergy
Esper Sentinel
37%inclusion74 decks200 decks
18%synergy
Scholar of New Horizons
36%inclusion71 decks200 decks
34%synergy
Lotho, Corrupt Shirriff
35%inclusion69 decks200 decks
21%synergy
Morbid Opportunist
33%inclusion65 decks200 decks
25%synergy
Midnight Reaper
32%inclusion64 decks200 decks
29%synergy
Woe Strider
31%inclusion61 decks200 decks
29%synergy
Charismatic Conqueror
31%inclusion61 decks200 decks
27%synergy
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30%inclusion60 decks200 decks
24%synergy
Butcher Ghoul
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29%synergy
Bartolomé del Presidio
29%inclusion58 decks200 decks
24%synergy
Pawn of Ulamog
27%inclusion53 decks200 decks
25%synergy
Teysa Karlov
26%inclusion51 decks200 decks
21%synergy
Sun Titan
25%inclusion50 decks200 decks
17%synergy
Junji, the Midnight Sky
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18%synergy
Enduring Innocence
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16%synergy
Accursed Marauder
20%inclusion40 decks200 decks
15%synergy
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20%inclusion39 decks200 decks
19%synergy
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20%inclusion39 decks200 decks
13%synergy
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12%synergy
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17%synergy
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13%synergy
Voice of Victory
18%inclusion35 decks200 decks
11%synergy
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17%inclusion33 decks200 decks
12%synergy
Yahenni, Undying Partisan
16%inclusion31 decks200 decks
12%synergy
Boromir, Warden of the Tower
16%inclusion31 decks200 decks
11%synergy
Syr Konrad, the Grim
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13%synergy
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13%synergy
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12%synergy
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Guardian of Faith
13%inclusion25 decks200 decks
11%synergy
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5%synergy
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11%synergy
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7%synergy
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10%synergy
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Instants
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22%synergy
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22%synergy
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18%synergy
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Flawless Maneuver
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Stroke of Midnight
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Reprieve
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4%synergy
Cauldron Haze
7.0%inclusion14 decks200 decks
7%synergy
Cabal Ritual
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2%synergy
Afterlife Insurance
6.5%inclusion13 decks200 decks
6%synergy
Dawn's Truce
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Flare of Malice
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3%synergy
Sorceries
Diabolic Intent
41%inclusion81 decks200 decks
33%synergy
Victimize
40%inclusion79 decks200 decks
27%synergy
Reanimate
40%inclusion79 decks200 decks
21%synergy
Damn
39%inclusion78 decks200 decks
23%synergy
Toxic Deluge
29%inclusion58 decks200 decks
11%synergy
Austere Command
17%inclusion33 decks200 decks
4%synergy
Night's Whisper
16%inclusion31 decks200 decks
6%synergy
Agadeem's Awakening
15%inclusion30 decks200 decks
12%synergy
Blasphemous Edict
14%inclusion28 decks200 decks
8%synergy
Farewell
14%inclusion27 decks200 decks
1%synergy
Living Death
13%inclusion26 decks200 decks
8%synergy
Torment of Hailfire
10%inclusion19 decks200 decks
5%synergy
Exsanguinate
10%inclusion19 decks200 decks
3%synergy
Sign in Blood
10%inclusion19 decks200 decks
0%synergy
Damnation
8.5%inclusion17 decks200 decks
2%synergy
Grim Tutor
7.5%inclusion15 decks200 decks
3%synergy
Wrath of God
7.5%inclusion15 decks200 decks
2%synergy
Feed the Swarm
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-9%synergy
Vindicate
6.5%inclusion13 decks200 decks
1%synergy
Sevinne's Reclamation
6.5%inclusion13 decks200 decks
-1%synergy
Split Up
5.5%inclusion11 decks200 decks
4%synergy
Beseech the Mirror
5.5%inclusion11 decks200 decks
2%synergy
Utility Artifacts
Skullclamp
56%inclusion112 decks200 decks
45%synergy
Altar of Dementia
54%inclusion107 decks200 decks
51%synergy
Lightning Greaves
38%inclusion75 decks200 decks
13%synergy
Blasting Station
36%inclusion72 decks200 decks
36%synergy
Swiftfoot Boots
24%inclusion47 decks200 decks
-4%synergy
Oketra's Monument
17%inclusion34 decks200 decks
15%synergy
The One Ring
14%inclusion27 decks200 decks
5%synergy
Jet Medallion
11%inclusion22 decks200 decks
7%synergy
Pearl Medallion
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8%synergy
Spawning Pit
9.0%inclusion18 decks200 decks
9%synergy
Mithril Coat
7.0%inclusion14 decks200 decks
3%synergy
Archaeomancer's Map
6.5%inclusion13 decks200 decks
3%synergy
Enchantments
Bastion of Remembrance
52%inclusion103 decks200 decks
45%synergy
Solemnity
50%inclusion99 decks200 decks
49%synergy
Impact Tremors
43%inclusion3 decks7 decks
33%synergy
Bitterblossom
38%inclusion75 decks200 decks
33%synergy
Grave Pact
37%inclusion74 decks200 decks
32%synergy
Black Market Connections
35%inclusion70 decks200 decks
23%synergy
The Meathook Massacre
34%inclusion67 decks200 decks
28%synergy
Phyrexian Arena
33%inclusion65 decks200 decks
17%synergy
Thran Vigil
25%inclusion50 decks200 decks
25%synergy
Sothera, the Supervoid
14%inclusion27 decks200 decks
13%synergy
Land Tax
13%inclusion26 decks200 decks
7%synergy
Dictate of Erebos
12%inclusion24 decks200 decks
9%synergy
Animate Dead
12%inclusion24 decks200 decks
3%synergy
Funeral Room // Awakening Hall
10%inclusion20 decks200 decks
8%synergy
Fanatical Devotion
9.0%inclusion18 decks200 decks
8%synergy
Barrensteppe Siege
8.5%inclusion17 decks200 decks
7%synergy
Martyr's Cause
6.5%inclusion13 decks200 decks
6%synergy
Virtue of Loyalty
6.5%inclusion13 decks200 decks
5%synergy
Anointed Procession
6.5%inclusion13 decks200 decks
-1%synergy
Skrelv's Hive
6.0%inclusion12 decks200 decks
4%synergy
Felidar Retreat
6.0%inclusion12 decks200 decks
0%synergy
Planeswalkers
Liliana, Dreadhorde General
23%inclusion45 decks200 decks
19%synergy
Elspeth, Storm Slayer
9.0%inclusion18 decks200 decks
4%synergy
Utility Lands
Phyrexian Tower
63%inclusion125 decks200 decks
54%synergy
Urborg, Tomb of Yawgmoth
48%inclusion96 decks200 decks
39%synergy
Bojuka Bog
41%inclusion81 decks200 decks
11%synergy
High Market
27%inclusion54 decks200 decks
24%synergy
Takenuma, Abandoned Mire
27%inclusion53 decks200 decks
18%synergy
Cabal Coffers
25%inclusion50 decks200 decks
15%synergy
Reliquary Tower
25%inclusion50 decks200 decks
-5%synergy
Eiganjo, Seat of the Empire
21%inclusion41 decks200 decks
13%synergy
Susur Secundi, Void Altar
19%inclusion38 decks200 decks
16%synergy
Vault of the Archangel
18%inclusion35 decks200 decks
5%synergy
Midgar, City of Mako
17%inclusion33 decks200 decks
12%synergy
Nykthos, Shrine to Nyx
14%inclusion27 decks200 decks
8%synergy
Westvale Abbey
11%inclusion22 decks200 decks
9%synergy
Command Beacon
11%inclusion21 decks200 decks
6%synergy
Urza's Saga
10%inclusion20 decks200 decks
3%synergy
Spymaster's Vault
8.5%inclusion17 decks200 decks
6%synergy
Shizo, Death's Storehouse
8.0%inclusion16 decks200 decks
4%synergy
Castle Locthwain
7.0%inclusion14 decks200 decks
3%synergy
Nesting Grounds
6.0%inclusion12 decks200 decks
4%synergy
Minas Tirith
5.5%inclusion11 decks200 decks
-1%synergy
Mana Artifacts
Sol Ring
93%inclusion186 decks200 decks
9%synergy
Arcane Signet
85%inclusion170 decks200 decks
13%synergy
Talisman of Hierarchy
62%inclusion124 decks200 decks
36%synergy
Orzhov Signet
49%inclusion97 decks200 decks
24%synergy
Talisman of Indulgence
43%inclusion3 decks7 decks
15%synergy
The Soul Stone
28%inclusion55 decks200 decks
23%synergy
Fellwar Stone
25%inclusion50 decks200 decks
4%synergy
Thought Vessel
18%inclusion35 decks200 decks
0%synergy
Mind Stone
14%inclusion29 decks200 decks
-1%synergy
Mana Vault
10%inclusion20 decks200 decks
4%synergy
Chrome Mox
10%inclusion20 decks200 decks
4%synergy
Lotus Petal
10%inclusion20 decks200 decks
3%synergy
Crowded Crypt
7.0%inclusion14 decks200 decks
6%synergy
Lands
Raffine's Tower
100%inclusion4 decks4 decks
75%synergy
Ziatora's Proving Ground
100%inclusion3 decks3 decks
72%synergy
Indatha Triome
100%inclusion6 decks6 decks
72%synergy
Zagoth Triome
100%inclusion4 decks4 decks
72%synergy
Jetmir's Garden
100%inclusion3 decks3 decks
71%synergy
Godless Shrine
87%inclusion174 decks200 decks
46%synergy
Command Tower
86%inclusion172 decks200 decks
12%synergy
Savai Triome
86%inclusion6 decks7 decks
61%synergy
Temple Garden
83%inclusion5 decks6 decks
45%synergy
Overgrown Tomb
83%inclusion5 decks6 decks
43%synergy
Spara's Headquarters
75%inclusion3 decks4 decks
47%synergy
Hallowed Fountain
75%inclusion3 decks4 decks
35%synergy
Watery Grave
75%inclusion3 decks4 decks
34%synergy
Breeding Pool
75%inclusion3 decks4 decks
34%synergy
Isolated Chapel
69%inclusion137 decks200 decks
36%synergy
Vault of Champions
68%inclusion136 decks200 decks
44%synergy
Shattered Sanctum
61%inclusion122 decks200 decks
46%synergy
Caves of Koilos
61%inclusion122 decks200 decks
32%synergy
Marsh Flats
59%inclusion118 decks200 decks
48%synergy
Sacred Foundry
57%inclusion4 decks7 decks
21%synergy
Blood Crypt
57%inclusion4 decks7 decks
20%synergy
Bleachbone Verge
55%inclusion110 decks200 decks
47%synergy
Savannah
50%inclusion3 decks6 decks
37%synergy
Bayou
50%inclusion3 decks6 decks
37%synergy
Fetid Heath
49%inclusion98 decks200 decks
36%synergy
Brightclimb Pathway
43%inclusion86 decks200 decks
34%synergy
Shadowy Backstreet
43%inclusion85 decks200 decks
32%synergy
Tainted Field
42%inclusion84 decks200 decks
29%synergy
Shineshadow Snarl
30%inclusion60 decks200 decks
17%synergy
Silent Clearing
27%inclusion53 decks200 decks
22%synergy
Fabled Passage
27%inclusion53 decks200 decks
17%synergy
Scrubland
24%inclusion48 decks200 decks
10%synergy
Exotic Orchard
24%inclusion47 decks200 decks
-13%synergy
Concealed Courtyard
22%inclusion43 decks200 decks
16%synergy
Orzhov Basilica
21%inclusion41 decks200 decks
6%synergy
Temple of Silence
18%inclusion35 decks200 decks
0%synergy
Prismatic Vista
17%inclusion33 decks200 decks
12%synergy
Desolate Mire
17%inclusion33 decks200 decks
10%synergy
Bloodstained Mire
13%inclusion25 decks200 decks
1%synergy
Flooded Strand
13%inclusion25 decks200 decks
1%synergy
Arid Mesa
12%inclusion24 decks200 decks
2%synergy
Windswept Heath
12%inclusion23 decks200 decks
1%synergy
Verdant Catacombs
12%inclusion23 decks200 decks
1%synergy
Polluted Delta
12%inclusion23 decks200 decks
0%synergy
Reflecting Pool
11%inclusion21 decks200 decks
5%synergy
Mana Confluence
11%inclusion21 decks200 decks
3%synergy
City of Brass
8.5%inclusion17 decks200 decks
1%synergy
Evolving Wilds
8.0%inclusion16 decks200 decks
-13%synergy
Terramorphic Expanse
7.0%inclusion14 decks200 decks
-8%synergy
Plaza of Heroes
6.5%inclusion13 decks200 decks
4%synergy