Eirdu, Carrier of Dawn
Mikaeus, the Unhallowed
Umbral Collar Zealot

   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 Umbral Collar Zealot 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 Umbral Collar Zealot 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 Umbral Collar Zealot 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 surveil
Eirdu, Carrier of Dawn
25%inclusion905 decks3.58K decks
Karai, Future of the Foot
0.6%inclusion1 decks156 decks
Top Commanders
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0.5%inclusion9 decks1.92K decks
Celes, Rune Knight
0.2%inclusion9 decks4.24K decks
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0.4%inclusion7 decks1.99K decks
Tayam, Luminous Enigma
0.2%inclusion7 decks2.94K decks
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0.4%inclusion5 decks1.14K decks
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0.0%inclusion3 decks6.60K decks
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0.1%inclusion3 decks2.47K decks
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0.1%inclusion3 decks2.42K decks
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0.0%inclusion1 decks4.84K decks
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0.2%inclusion1 decks560 decks
Sefris of the Hidden Ways
0.0%inclusion1 decks4.13K decks
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0.0%inclusion1 decks3.55K decks
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0.0%inclusion1 decks2.27K decks
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0.0%inclusion1 decks2.64K decks
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0.1%inclusion1 decks1.41K decks
New Cards
Rhys, the Evermore
36%inclusion280 decks788 decks
35%synergy
Bitterbloom Bearer
32%inclusion313 decks970 decks
30%synergy
Emptiness
32%inclusion307 decks970 decks
31%synergy
Formidable Speaker
31%inclusion8 decks26 decks
28%synergy
Twilight Diviner
18%inclusion139 decks767 decks
16%synergy
High Synergy Cards
Viscera Seer
85%inclusion822 decks970 decks
77%synergy
Ashnod's Altar
78%inclusion759 decks970 decks
72%synergy
Elas il-Kor, Sadistic Pilgrim
81%inclusion783 decks970 decks
71%synergy
Murderous Redcap
73%inclusion8 decks11 decks
71%synergy
Cruel Celebrant
75%inclusion727 decks970 decks
68%synergy
Pitiless Plunderer
76%inclusion738 decks970 decks
68%synergy
Goblin Bombardment
73%inclusion8 decks11 decks
67%synergy
Luminous Broodmoth
69%inclusion668 decks970 decks
66%synergy
Zulaport Cutthroat
74%inclusion717 decks970 decks
65%synergy
Geralf's Messenger
66%inclusion636 decks970 decks
65%synergy
Top Cards
Swords to Plowshares
76%inclusion740 decks970 decks
15%synergy
Blood Artist
75%inclusion725 decks970 decks
63%synergy
Warren Soultrader
69%inclusion673 decks970 decks
64%synergy
Skullclamp
66%inclusion642 decks970 decks
55%synergy
Carrion Feeder
65%inclusion631 decks970 decks
61%synergy
Marionette Apprentice
64%inclusion616 decks970 decks
59%synergy
Cathars' Crusade
63%inclusion615 decks970 decks
58%synergy
Path to Exile
63%inclusion609 decks970 decks
16%synergy
Vizier of Remedies
63%inclusion607 decks970 decks
62%synergy
Phyrexian Altar
62%inclusion602 decks970 decks
59%synergy
Game Changers
Demonic Tutor
29%inclusion278 decks970 decks
9%synergy
Gamble
27%inclusion3 decks11 decks
18%synergy
Smothering Tithe
22%inclusion214 decks970 decks
1%synergy
Vampiric Tutor
19%inclusion181 decks970 decks
4%synergy
Teferi's Protection
18%inclusion172 decks970 decks
1%synergy
Gaea's Cradle
15%inclusion4 decks26 decks
9%synergy
Survival of the Fittest
12%inclusion3 decks26 decks
10%synergy
Ancient Tomb
11%inclusion108 decks970 decks
2%synergy
Bolas's Citadel
10%inclusion98 decks970 decks
2%synergy
Necropotence
7.3%inclusion71 decks970 decks
2%synergy
Creatures
River Kelpie
100%inclusion3 decks3 decks
99%synergy
Glen Elendra Archmage
100%inclusion3 decks3 decks
98%synergy
Solemn Simulacrum
60%inclusion579 decks970 decks
47%synergy
Grim Haruspex
59%inclusion573 decks970 decks
56%synergy
Mayhem Devil
55%inclusion6 decks11 decks
45%synergy
Corpse Knight
54%inclusion526 decks970 decks
49%synergy
Gray Merchant of Asphodel
51%inclusion499 decks970 decks
43%synergy
Morbid Opportunist
49%inclusion472 decks970 decks
41%synergy
Sephiroth, Fabled SOLDIER
48%inclusion463 decks970 decks
45%synergy
Bartolomé del Presidio
47%inclusion455 decks970 decks
43%synergy
Scholar of New Horizons
46%inclusion447 decks970 decks
45%synergy
Butcher Ghoul
45%inclusion435 decks970 decks
44%synergy
Yawgmoth, Thran Physician
44%inclusion431 decks970 decks
41%synergy
Witch Enchanter
44%inclusion431 decks970 decks
37%synergy
Elenda, the Dusk Rose
43%inclusion418 decks970 decks
38%synergy
Eternal Witness
42%inclusion11 decks26 decks
26%synergy
Woe Strider
41%inclusion396 decks970 decks
39%synergy
Sakura-Tribe Elder
38%inclusion10 decks26 decks
22%synergy
Birds of Paradise
38%inclusion10 decks26 decks
11%synergy
Alesha, Who Laughs at Fate
36%inclusion4 decks11 decks
33%synergy
Anger
36%inclusion4 decks11 decks
30%synergy
Midnight Reaper
36%inclusion350 decks970 decks
33%synergy
Kitchen Finks
35%inclusion9 decks26 decks
34%synergy
Fiend Artisan
35%inclusion9 decks26 decks
33%synergy
Aftermath Analyst
35%inclusion9 decks26 decks
30%synergy
Icetill Explorer
35%inclusion9 decks26 decks
28%synergy
Esper Sentinel
33%inclusion323 decks970 decks
14%synergy
Lotho, Corrupt Shirriff
32%inclusion310 decks970 decks
19%synergy
Sun Titan
31%inclusion301 decks970 decks
23%synergy
Braids, Arisen Nightmare
31%inclusion299 decks970 decks
24%synergy
Zack Fair
29%inclusion286 decks970 decks
28%synergy
Teysa Karlov
28%inclusion273 decks970 decks
24%synergy
Junji, the Midnight Sky
28%inclusion267 decks970 decks
25%synergy
Furystoke Giant
27%inclusion3 decks11 decks
27%synergy
Flayer of the Hatebound
27%inclusion3 decks11 decks
27%synergy
Gogo, Mysterious Mime
27%inclusion3 decks11 decks
26%synergy
Protean Hulk
27%inclusion7 decks26 decks
25%synergy
Llanowar Elves
27%inclusion7 decks26 decks
7%synergy
Welcoming Vampire
27%inclusion258 decks970 decks
20%synergy
Pawn of Ulamog
26%inclusion256 decks970 decks
25%synergy
Syr Konrad, the Grim
25%inclusion247 decks970 decks
17%synergy
Charismatic Conqueror
24%inclusion236 decks970 decks
21%synergy
Vengeful Bloodwitch
24%inclusion234 decks970 decks
22%synergy
Accursed Marauder
24%inclusion234 decks970 decks
19%synergy
Golgari Grave-Troll
23%inclusion6 decks26 decks
22%synergy
Basking Broodscale
23%inclusion6 decks26 decks
21%synergy
Satyr Wayfinder
23%inclusion6 decks26 decks
21%synergy
Devoted Druid
23%inclusion6 decks26 decks
20%synergy
Wight of the Reliquary
23%inclusion6 decks26 decks
18%synergy
Deathrite Shaman
23%inclusion6 decks26 decks
12%synergy
Instants
Dark Ritual
61%inclusion592 decks970 decks
37%synergy
Deadly Dispute
57%inclusion552 decks970 decks
45%synergy
Anguished Unmaking
52%inclusion505 decks970 decks
28%synergy
Village Rites
47%inclusion457 decks970 decks
38%synergy
Deflecting Swat
36%inclusion4 decks11 decks
19%synergy
Generous Gift
36%inclusion350 decks970 decks
14%synergy
Flare of Fortitude
34%inclusion328 decks970 decks
30%synergy
Assassin's Trophy
31%inclusion8 decks26 decks
0%synergy
Inkshield
28%inclusion270 decks970 decks
21%synergy
Fell the Profane
28%inclusion267 decks970 decks
19%synergy
Demand Answers
27%inclusion3 decks11 decks
21%synergy
Untimely Malfunction
27%inclusion3 decks11 decks
19%synergy
Corrupted Conviction
27%inclusion260 decks970 decks
22%synergy
Malakir Rebirth
22%inclusion215 decks970 decks
14%synergy
Despark
22%inclusion215 decks970 decks
9%synergy
Deadly Rollick
21%inclusion205 decks970 decks
7%synergy
Plumb the Forbidden
18%inclusion176 decks970 decks
16%synergy
Culling the Weak
17%inclusion162 decks970 decks
12%synergy
Mythos of Nethroi
15%inclusion4 decks26 decks
14%synergy
Eladamri's Call
15%inclusion4 decks26 decks
7%synergy
Abrupt Decay
15%inclusion4 decks26 decks
6%synergy
Fracture
14%inclusion133 decks970 decks
9%synergy
Enlightened Tutor
14%inclusion131 decks970 decks
-2%synergy
Stroke of Midnight
13%inclusion130 decks970 decks
3%synergy
Chord of Calling
12%inclusion3 decks26 decks
6%synergy
Revitalizing Repast
12%inclusion3 decks26 decks
3%synergy
Silence
11%inclusion111 decks970 decks
5%synergy
Dawn's Truce
10%inclusion95 decks970 decks
3%synergy
Saw in Half
9.4%inclusion91 decks970 decks
5%synergy
Clever Concealment
9.4%inclusion91 decks970 decks
5%synergy
Mortify
8.9%inclusion86 decks970 decks
-2%synergy
Flawless Maneuver
8.6%inclusion83 decks970 decks
-2%synergy
Flare of Malice
8.2%inclusion80 decks970 decks
6%synergy
Imp's Mischief
7.6%inclusion74 decks970 decks
4%synergy
Reprieve
7.2%inclusion70 decks970 decks
3%synergy
Duty Beyond Death
6.9%inclusion67 decks970 decks
6%synergy
Cabal Ritual
6.2%inclusion60 decks970 decks
1%synergy
Entomb
5.9%inclusion57 decks970 decks
-1%synergy
Sorceries
Damn
53%inclusion518 decks970 decks
38%synergy
Victimize
51%inclusion497 decks970 decks
39%synergy
Reanimate
48%inclusion462 decks970 decks
29%synergy
Ruinous Ultimatum
45%inclusion5 decks11 decks
27%synergy
Diabolic Intent
39%inclusion381 decks970 decks
32%synergy
Eerie Ultimatum
38%inclusion10 decks26 decks
28%synergy
Faithless Looting
36%inclusion4 decks11 decks
21%synergy
Toxic Deluge
34%inclusion326 decks970 decks
16%synergy
Life from the Loam
19%inclusion5 decks26 decks
15%synergy
Farseek
19%inclusion5 decks26 decks
-17%synergy
Cultivate
19%inclusion5 decks26 decks
-23%synergy
Night's Whisper
19%inclusion184 decks970 decks
10%synergy
Blasphemous Edict
18%inclusion173 decks970 decks
12%synergy
Austere Command
16%inclusion156 decks970 decks
4%synergy
Three Visits
15%inclusion4 decks26 decks
-9%synergy
Nature's Lore
15%inclusion4 decks26 decks
-16%synergy
Eldritch Evolution
12%inclusion3 decks26 decks
7%synergy
Kodama's Reach
12%inclusion3 decks26 decks
-15%synergy
Agadeem's Awakening
11%inclusion111 decks970 decks
8%synergy
Living Death
11%inclusion110 decks970 decks
6%synergy
Sign in Blood
11%inclusion107 decks970 decks
2%synergy
Sevinne's Reclamation
10%inclusion100 decks970 decks
3%synergy
Dread Return
9.2%inclusion89 decks970 decks
4%synergy
Farewell
8.5%inclusion82 decks970 decks
-4%synergy
Morningtide's Light
7.5%inclusion73 decks970 decks
7%synergy
Feed the Swarm
7.0%inclusion68 decks970 decks
-9%synergy
Wrath of God
6.7%inclusion65 decks970 decks
2%synergy
Grim Tutor
6.6%inclusion64 decks970 decks
3%synergy
Vindicate
6.5%inclusion63 decks970 decks
1%synergy
Damnation
6.4%inclusion62 decks970 decks
0%synergy
Rite of Oblivion
5.8%inclusion56 decks970 decks
4%synergy
Exsanguinate
5.7%inclusion55 decks970 decks
-1%synergy
Raise the Past
5.4%inclusion52 decks970 decks
4%synergy
Celestial Reunion
5.3%inclusion1 decks19 decks
4%synergy
Utility Artifacts
Altar of Dementia
45%inclusion435 decks970 decks
43%synergy
Lightning Greaves
42%inclusion411 decks970 decks
18%synergy
Blasting Station
28%inclusion276 decks970 decks
28%synergy
Birthing Pod
27%inclusion7 decks26 decks
25%synergy
Swiftfoot Boots
24%inclusion232 decks970 decks
-3%synergy
Oketra's Monument
17%inclusion166 decks970 decks
16%synergy
Jet Medallion
12%inclusion119 decks970 decks
9%synergy
Pearl Medallion
11%inclusion103 decks970 decks
8%synergy
The One Ring
8.0%inclusion78 decks970 decks
0%synergy
Spawning Pit
6.6%inclusion64 decks970 decks
6%synergy
Wayfarer's Bauble
5.3%inclusion51 decks970 decks
-2%synergy
Enchantments
Bastion of Remembrance
60%inclusion581 decks970 decks
53%synergy
Solemnity
58%inclusion562 decks970 decks
57%synergy
The Meathook Massacre
40%inclusion392 decks970 decks
35%synergy
Impact Tremors
36%inclusion4 decks11 decks
27%synergy
Black Market Connections
34%inclusion327 decks970 decks
22%synergy
Thran Vigil
32%inclusion315 decks970 decks
32%synergy
Bitterblossom
28%inclusion274 decks970 decks
24%synergy
Phyrexian Arena
28%inclusion270 decks970 decks
12%synergy
Grave Pact
26%inclusion251 decks970 decks
21%synergy
Insidious Roots
19%inclusion5 decks26 decks
14%synergy
Birthing Ritual
15%inclusion4 decks26 decks
15%synergy
Greater Good
15%inclusion4 decks26 decks
11%synergy
Sothera, the Supervoid
13%inclusion128 decks970 decks
12%synergy
Funeral Room // Awakening Hall
12%inclusion112 decks970 decks
10%synergy
Land Tax
11%inclusion110 decks970 decks
5%synergy
Dictate of Erebos
10%inclusion101 decks970 decks
7%synergy
Animate Dead
10%inclusion99 decks970 decks
1%synergy
Barrensteppe Siege
9.4%inclusion91 decks970 decks
8%synergy
Grave Venerations
8.1%inclusion63 decks782 decks
6%synergy
Felidar Retreat
6.3%inclusion61 decks970 decks
0%synergy
Trouble in Pairs
6.1%inclusion59 decks970 decks
2%synergy
Vampiric Rites
5.6%inclusion54 decks970 decks
3%synergy
Blind Obedience
5.6%inclusion54 decks970 decks
0%synergy
Martyr's Cause
5.2%inclusion50 decks970 decks
5%synergy
Planeswalkers
Grist, the Hunger Tide
19%inclusion5 decks26 decks
15%synergy
Liliana, Dreadhorde General
18%inclusion176 decks970 decks
15%synergy
Elspeth, Storm Slayer
9.3%inclusion90 decks970 decks
5%synergy
Utility Lands
Phyrexian Tower
54%inclusion526 decks970 decks
45%synergy
Bojuka Bog
46%inclusion451 decks970 decks
17%synergy
Boseiju, Who Endures
46%inclusion12 decks26 decks
27%synergy
Urborg, Tomb of Yawgmoth
36%inclusion351 decks970 decks
27%synergy
Shifting Woodland
35%inclusion9 decks26 decks
28%synergy
High Market
34%inclusion325 decks970 decks
31%synergy
Reliquary Tower
28%inclusion267 decks970 decks
-2%synergy
Susur Secundi, Void Altar
22%inclusion216 decks970 decks
20%synergy
Vault of the Archangel
21%inclusion205 decks970 decks
9%synergy
Abandoned Air Temple
21%inclusion181 decks882 decks
16%synergy
Takenuma, Abandoned Mire
20%inclusion193 decks970 decks
11%synergy
Midgar, City of Mako
15%inclusion146 decks970 decks
11%synergy
Cabal Coffers
15%inclusion143 decks970 decks
5%synergy
Westvale Abbey
13%inclusion122 decks970 decks
10%synergy
Nesting Grounds
13%inclusion122 decks970 decks
10%synergy
Eiganjo, Seat of the Empire
12%inclusion118 decks970 decks
5%synergy
Evendo, Waking Haven
12%inclusion3 decks26 decks
7%synergy
Gavony Township
12%inclusion3 decks26 decks
4%synergy
Spymaster's Vault
10%inclusion100 decks970 decks
8%synergy
Command Beacon
9.3%inclusion90 decks970 decks
4%synergy
Urza's Saga
7.4%inclusion72 decks970 decks
0%synergy
Nykthos, Shrine to Nyx
5.8%inclusion56 decks970 decks
0%synergy
Mana Artifacts
Sol Ring
92%inclusion889 decks970 decks
8%synergy
Arcane Signet
89%inclusion862 decks970 decks
17%synergy
Talisman of Indulgence
73%inclusion8 decks11 decks
45%synergy
Talisman of Hierarchy
66%inclusion645 decks970 decks
40%synergy
Talisman of Conviction
64%inclusion7 decks11 decks
39%synergy
Orzhov Signet
57%inclusion557 decks970 decks
34%synergy
Fellwar Stone
28%inclusion273 decks970 decks
8%synergy
The Soul Stone
18%inclusion177 decks970 decks
14%synergy
Mind Stone
15%inclusion144 decks970 decks
0%synergy
Thought Vessel
14%inclusion135 decks970 decks
-3%synergy
Talisman of Unity
12%inclusion3 decks26 decks
4%synergy
Talisman of Resilience
12%inclusion3 decks26 decks
-1%synergy
Lotus Petal
6.3%inclusion61 decks970 decks
-1%synergy
Commander's Sphere
5.2%inclusion50 decks970 decks
-7%synergy
Lands
Hallowed Fountain
100%inclusion3 decks3 decks
60%synergy
Command Tower
93%inclusion903 decks970 decks
19%synergy
Overgrown Tomb
88%inclusion23 decks26 decks
47%synergy
Temple Garden
85%inclusion22 decks26 decks
45%synergy
Godless Shrine
82%inclusion791 decks970 decks
40%synergy
Isolated Chapel
78%inclusion758 decks970 decks
44%synergy
Blood Crypt
73%inclusion8 decks11 decks
35%synergy
Caves of Koilos
68%inclusion664 decks970 decks
39%synergy
Savai Triome
64%inclusion7 decks11 decks
40%synergy
Dragonskull Summit
64%inclusion7 decks11 decks
29%synergy
Clifftop Retreat
64%inclusion7 decks11 decks
28%synergy
Sacred Foundry
64%inclusion7 decks11 decks
27%synergy
Shattered Sanctum
61%inclusion596 decks970 decks
46%synergy
Fetid Heath
58%inclusion567 decks970 decks
45%synergy
Vault of Champions
58%inclusion565 decks970 decks
35%synergy
Indatha Triome
58%inclusion15 decks26 decks
30%synergy
Sulfurous Springs
55%inclusion6 decks11 decks
31%synergy
Tainted Field
54%inclusion523 decks970 decks
41%synergy
Lush Portico
54%inclusion14 decks26 decks
45%synergy
Bleachbone Verge
53%inclusion518 decks970 decks
45%synergy
Marsh Flats
50%inclusion489 decks970 decks
40%synergy
Underground Mortuary
50%inclusion13 decks26 decks
37%synergy
Woodland Cemetery
50%inclusion13 decks26 decks
18%synergy
Luxury Suite
45%inclusion5 decks11 decks
22%synergy
Battlefield Forge
45%inclusion5 decks11 decks
17%synergy
Shadowy Backstreet
43%inclusion413 decks970 decks
32%synergy
Shineshadow Snarl
39%inclusion378 decks970 decks
27%synergy
Brightclimb Pathway
38%inclusion373 decks970 decks
30%synergy
Graven Cairns
36%inclusion4 decks11 decks
27%synergy
Smoldering Marsh
36%inclusion4 decks11 decks
3%synergy
Undergrowth Stadium
35%inclusion9 decks26 decks
11%synergy
Sandsteppe Citadel
35%inclusion9 decks26 decks
9%synergy
Llanowar Wastes
35%inclusion9 decks26 decks
8%synergy
Sunpetal Grove
35%inclusion9 decks26 decks
6%synergy
Exotic Orchard
31%inclusion299 decks970 decks
-6%synergy
Bountiful Promenade
31%inclusion8 decks26 decks
9%synergy
Elegant Parlor
27%inclusion3 decks11 decks
20%synergy
Sunbillow Verge
27%inclusion3 decks11 decks
19%synergy
Blazemire Verge
27%inclusion3 decks11 decks
16%synergy
Rugged Prairie
27%inclusion3 decks11 decks
12%synergy
Spectator Seating
27%inclusion3 decks11 decks
5%synergy
Nomad Outpost
27%inclusion3 decks11 decks
-2%synergy
Overgrown Farmland
27%inclusion7 decks26 decks
10%synergy
Orzhov Basilica
26%inclusion257 decks970 decks
12%synergy
Temple of Silence
25%inclusion247 decks970 decks
8%synergy
Savannah
23%inclusion6 decks26 decks
10%synergy
Deathcap Glade
23%inclusion6 decks26 decks
10%synergy
Bayou
23%inclusion6 decks26 decks
10%synergy
Brushland
23%inclusion6 decks26 decks
3%synergy
Desolate Mire
20%inclusion196 decks970 decks
14%synergy