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 1
Eirdu, Carrier of Dawn
23%inclusion128 decks566 decks
Top Commanders
Karador, Ghost Chieftain
0.2%inclusion2 decks876 decks
Tayam, Luminous Enigma
0.2%inclusion2 decks1.23K decks
Celes, Rune Knight
0.1%inclusion2 decks2.01K decks
Teysa Karlov
0.0%inclusion1 decks2.96K decks
Othelm, Sigardian Outcast // Wernog, Rider's Chaplain
0.6%inclusion1 decks163 decks
New Cards
Formidable Speaker
60%inclusion3 decks5 decks
60%synergy
Redirect Lightning
50%inclusion1 decks2 decks
46%synergy
Bitterbloom Bearer
33%inclusion45 decks136 decks
33%synergy
Emptiness
27%inclusion37 decks136 decks
27%synergy
Haru, Hidden Talent
20%inclusion1 decks5 decks
19%synergy
High Synergy Cards
Viscera Seer
88%inclusion119 decks136 decks
79%synergy
Elas il-Kor, Sadistic Pilgrim
82%inclusion111 decks136 decks
72%synergy
Warren Soultrader
75%inclusion102 decks136 decks
69%synergy
Pitiless Plunderer
76%inclusion104 decks136 decks
68%synergy
Ashnod's Altar
74%inclusion101 decks136 decks
68%synergy
Luminous Broodmoth
70%inclusion95 decks136 decks
67%synergy
Zulaport Cutthroat
75%inclusion102 decks136 decks
66%synergy
Phyrexian Altar
67%inclusion91 decks136 decks
63%synergy
Cruel Celebrant
70%inclusion95 decks136 decks
62%synergy
Geralf's Messenger
63%inclusion85 decks136 decks
62%synergy
Top Cards
Swords to Plowshares
71%inclusion97 decks136 decks
10%synergy
Blood Artist
69%inclusion94 decks136 decks
58%synergy
Carrion Feeder
66%inclusion90 decks136 decks
62%synergy
Grim Haruspex
63%inclusion85 decks136 decks
59%synergy
Cathars' Crusade
62%inclusion84 decks136 decks
57%synergy
Solemn Simulacrum
62%inclusion84 decks136 decks
49%synergy
Skullclamp
61%inclusion83 decks136 decks
50%synergy
Marionette Apprentice
60%inclusion82 decks136 decks
55%synergy
Dark Ritual
60%inclusion82 decks136 decks
36%synergy
Bastion of Remembrance
60%inclusion81 decks136 decks
53%synergy
Game Changers
Demonic Tutor
35%inclusion47 decks136 decks
15%synergy
Vampiric Tutor
21%inclusion29 decks136 decks
6%synergy
Bolas's Citadel
11%inclusion15 decks136 decks
3%synergy
Orcish Bowmasters
11%inclusion15 decks136 decks
2%synergy
Ancient Tomb
10%inclusion14 decks136 decks
1%synergy
The One Ring
8.8%inclusion12 decks136 decks
0%synergy
Necropotence
8.1%inclusion11 decks136 decks
3%synergy
Imperial Seal
7.4%inclusion10 decks136 decks
2%synergy
Mana Vault
7.4%inclusion10 decks136 decks
1%synergy
Chrome Mox
7.4%inclusion10 decks136 decks
1%synergy
Creatures
Kitchen Finks
60%inclusion3 decks5 decks
60%synergy
Corpse Knight
56%inclusion76 decks136 decks
50%synergy
Gray Merchant of Asphodel
53%inclusion72 decks136 decks
44%synergy
Scholar of New Horizons
51%inclusion70 decks136 decks
50%synergy
Witch Enchanter
49%inclusion67 decks136 decks
42%synergy
Morbid Opportunist
46%inclusion62 decks136 decks
38%synergy
Sephiroth, Fabled SOLDIER
45%inclusion61 decks136 decks
43%synergy
Yawgmoth, Thran Physician
45%inclusion61 decks136 decks
42%synergy
Woe Strider
44%inclusion60 decks136 decks
42%synergy
Midnight Reaper
42%inclusion57 decks136 decks
39%synergy
Bartolomé del Presidio
36%inclusion49 decks136 decks
31%synergy
Charismatic Conqueror
35%inclusion48 decks136 decks
32%synergy
Pawn of Ulamog
35%inclusion47 decks136 decks
33%synergy
Lotho, Corrupt Shirriff
35%inclusion47 decks136 decks
21%synergy
Butcher Ghoul
32%inclusion43 decks136 decks
31%synergy
Esper Sentinel
31%inclusion42 decks136 decks
12%synergy
Elenda, the Dusk Rose
30%inclusion41 decks136 decks
24%synergy
Enduring Innocence
29%inclusion39 decks136 decks
25%synergy
Sun Titan
29%inclusion39 decks136 decks
20%synergy
Vizier of Remedies
28%inclusion38 decks136 decks
28%synergy
Accursed Marauder
26%inclusion35 decks136 decks
20%synergy
Loran of the Third Path
26%inclusion35 decks136 decks
19%synergy
Welcoming Vampire
25%inclusion34 decks136 decks
19%synergy
Solitude
24%inclusion33 decks136 decks
23%synergy
Selfless Spirit
21%inclusion29 decks136 decks
17%synergy
Long Feng, Grand Secretariat
20%inclusion1 decks5 decks
20%synergy
The Cabbage Merchant
20%inclusion1 decks5 decks
19%synergy
Guardian of Faith
19%inclusion26 decks136 decks
17%synergy
Junji, the Midnight Sky
19%inclusion26 decks136 decks
17%synergy
Voice of Victory
18%inclusion25 decks136 decks
12%synergy
Vengeful Bloodwitch
17%inclusion23 decks136 decks
15%synergy
Spirited Companion
17%inclusion23 decks136 decks
13%synergy
Teysa Karlov
17%inclusion23 decks136 decks
12%synergy
Syr Konrad, the Grim
17%inclusion23 decks136 decks
8%synergy
Agent Venom
16%inclusion22 decks136 decks
15%synergy
Zack Fair
16%inclusion22 decks136 decks
14%synergy
Grand Abolisher
16%inclusion22 decks136 decks
7%synergy
Moonshaker Cavalry
15%inclusion21 decks136 decks
13%synergy
Boggart Trawler
15%inclusion21 decks136 decks
12%synergy
Boromir, Warden of the Tower
15%inclusion20 decks136 decks
11%synergy
Knight of the White Orchid
14%inclusion19 decks136 decks
9%synergy
Braids, Arisen Nightmare
14%inclusion19 decks136 decks
7%synergy
Shadrix Silverquill
13%inclusion18 decks136 decks
11%synergy
Overlord of the Mistmoors
13%inclusion17 decks136 decks
12%synergy
Shriekmaw
13%inclusion17 decks136 decks
11%synergy
Yahenni, Undying Partisan
13%inclusion17 decks136 decks
9%synergy
Karmic Guide
12%inclusion16 decks136 decks
8%synergy
Mother of Runes
11%inclusion15 decks136 decks
5%synergy
Claim Jumper
10%inclusion13 decks136 decks
8%synergy
Plaguecrafter
10%inclusion13 decks136 decks
5%synergy
Instants
Path to Exile
59%inclusion80 decks136 decks
12%synergy
Anguished Unmaking
54%inclusion74 decks136 decks
30%synergy
Deadly Dispute
51%inclusion70 decks136 decks
39%synergy
Generous Gift
46%inclusion63 decks136 decks
23%synergy
Village Rites
40%inclusion54 decks136 decks
30%synergy
Flare of Fortitude
35%inclusion47 decks136 decks
30%synergy
Fell the Profane
33%inclusion45 decks136 decks
24%synergy
Corrupted Conviction
26%inclusion36 decks136 decks
22%synergy
Malakir Rebirth
23%inclusion31 decks136 decks
15%synergy
Plumb the Forbidden
22%inclusion30 decks136 decks
19%synergy
Despark
21%inclusion29 decks136 decks
7%synergy
Inkshield
18%inclusion24 decks136 decks
11%synergy
Deadly Rollick
18%inclusion24 decks136 decks
4%synergy
Culling the Weak
16%inclusion22 decks136 decks
12%synergy
Clever Concealment
15%inclusion20 decks136 decks
10%synergy
Enlightened Tutor
15%inclusion20 decks136 decks
-1%synergy
Imp's Mischief
14%inclusion19 decks136 decks
10%synergy
Stroke of Midnight
13%inclusion18 decks136 decks
3%synergy
Teferi's Protection
13%inclusion18 decks136 decks
-4%synergy
Reprieve
13%inclusion17 decks136 decks
8%synergy
Fracture
11%inclusion15 decks136 decks
6%synergy
Silence
10%inclusion14 decks136 decks
4%synergy
Afterlife Insurance
8.8%inclusion12 decks136 decks
8%synergy
Duty Beyond Death
8.1%inclusion11 decks136 decks
7%synergy
Flare of Malice
8.1%inclusion11 decks136 decks
6%synergy
Saw in Half
8.1%inclusion11 decks136 decks
4%synergy
Flawless Maneuver
7.4%inclusion10 decks136 decks
-3%synergy
Cauldron Haze
6.6%inclusion9 decks136 decks
6%synergy
Ephemerate
6.6%inclusion9 decks136 decks
1%synergy
Dawn's Truce
6.6%inclusion9 decks136 decks
-1%synergy
Entomb
5.9%inclusion8 decks136 decks
-1%synergy
Infernal Grasp
5.9%inclusion8 decks136 decks
-1%synergy
Mortify
5.9%inclusion8 decks136 decks
-5%synergy
Cabal Ritual
5.1%inclusion7 decks136 decks
0%synergy
Withering Torment
5.1%inclusion7 decks136 decks
-3%synergy
Sorceries
Victimize
52%inclusion71 decks136 decks
40%synergy
Diabolic Intent
46%inclusion63 decks136 decks
38%synergy
Damn
46%inclusion62 decks136 decks
30%synergy
Reanimate
40%inclusion54 decks136 decks
21%synergy
Toxic Deluge
31%inclusion42 decks136 decks
13%synergy
Blasphemous Edict
18%inclusion25 decks136 decks
12%synergy
Night's Whisper
17%inclusion23 decks136 decks
8%synergy
Austere Command
14%inclusion19 decks136 decks
2%synergy
Farewell
13%inclusion18 decks136 decks
0%synergy
Agadeem's Awakening
13%inclusion17 decks136 decks
9%synergy
Living Death
11%inclusion15 decks136 decks
6%synergy
Sevinne's Reclamation
11%inclusion15 decks136 decks
4%synergy
Morningtide's Light
10%inclusion13 decks136 decks
9%synergy
Sign in Blood
8.8%inclusion12 decks136 decks
0%synergy
Raise the Past
8.1%inclusion11 decks136 decks
7%synergy
Dread Return
8.1%inclusion11 decks136 decks
3%synergy
Exsanguinate
7.4%inclusion10 decks136 decks
1%synergy
Damnation
7.4%inclusion10 decks136 decks
1%synergy
Pitiless Carnage
5.9%inclusion8 decks136 decks
5%synergy
Insatiable Avarice
5.9%inclusion8 decks136 decks
3%synergy
Beseech the Mirror
5.9%inclusion8 decks136 decks
3%synergy
Wrath of God
5.9%inclusion8 decks136 decks
1%synergy
Split Up
5.1%inclusion7 decks136 decks
3%synergy
Rite of Oblivion
5.1%inclusion7 decks136 decks
3%synergy
Grim Tutor
5.1%inclusion7 decks136 decks
1%synergy
Read the Bones
5.1%inclusion7 decks136 decks
-1%synergy
Feed the Swarm
5.1%inclusion7 decks136 decks
-11%synergy
Utility Artifacts
Altar of Dementia
49%inclusion67 decks136 decks
47%synergy
Blasting Station
34%inclusion46 decks136 decks
33%synergy
Lightning Greaves
34%inclusion46 decks136 decks
9%synergy
Oketra's Monument
20%inclusion27 decks136 decks
18%synergy
Swiftfoot Boots
18%inclusion24 decks136 decks
-10%synergy
Pearl Medallion
8.1%inclusion11 decks136 decks
6%synergy
Spawning Pit
7.4%inclusion10 decks136 decks
7%synergy
Jet Medallion
7.4%inclusion10 decks136 decks
4%synergy
Wayfarer's Bauble
6.6%inclusion9 decks136 decks
-1%synergy
Archaeomancer's Map
5.1%inclusion7 decks136 decks
2%synergy
Enchantments
Solemnity
51%inclusion69 decks136 decks
50%synergy
Black Market Connections
38%inclusion51 decks136 decks
26%synergy
Thran Vigil
36%inclusion49 decks136 decks
36%synergy
Bitterblossom
35%inclusion47 decks136 decks
30%synergy
The Meathook Massacre
33%inclusion45 decks136 decks
28%synergy
Phyrexian Arena
32%inclusion43 decks136 decks
16%synergy
Grave Pact
26%inclusion36 decks136 decks
22%synergy
Smothering Tithe
17%inclusion23 decks136 decks
-5%synergy
Sothera, the Supervoid
15%inclusion20 decks136 decks
14%synergy
Funeral Room // Awakening Hall
10%inclusion14 decks136 decks
9%synergy
Barrensteppe Siege
8.8%inclusion12 decks136 decks
7%synergy
Land Tax
8.8%inclusion12 decks136 decks
2%synergy
Fanatical Devotion
8.1%inclusion11 decks136 decks
7%synergy
Virtue of Loyalty
8.1%inclusion11 decks136 decks
6%synergy
Felidar Retreat
8.1%inclusion11 decks136 decks
2%synergy
Dictate of Erebos
7.4%inclusion10 decks136 decks
4%synergy
Animate Dead
7.4%inclusion10 decks136 decks
-2%synergy
Martyr's Cause
6.6%inclusion9 decks136 decks
6%synergy
Planeswalkers
Liliana, Dreadhorde General
18%inclusion25 decks136 decks
15%synergy
Elspeth, Storm Slayer
5.1%inclusion7 decks136 decks
0%synergy
Utility Lands
Phyrexian Tower
54%inclusion74 decks136 decks
46%synergy
Bojuka Bog
44%inclusion60 decks136 decks
14%synergy
High Market
34%inclusion46 decks136 decks
31%synergy
Urborg, Tomb of Yawgmoth
32%inclusion44 decks136 decks
23%synergy
Takenuma, Abandoned Mire
24%inclusion32 decks136 decks
15%synergy
Reliquary Tower
23%inclusion31 decks136 decks
-7%synergy
Susur Secundi, Void Altar
21%inclusion29 decks136 decks
19%synergy
Midgar, City of Mako
19%inclusion26 decks136 decks
15%synergy
Vault of the Archangel
18%inclusion24 decks136 decks
6%synergy
Spymaster's Vault
15%inclusion21 decks136 decks
13%synergy
Eiganjo, Seat of the Empire
15%inclusion21 decks136 decks
8%synergy
Cabal Coffers
15%inclusion20 decks136 decks
5%synergy
Nesting Grounds
13%inclusion18 decks136 decks
11%synergy
Command Beacon
12%inclusion16 decks136 decks
7%synergy
Westvale Abbey
11%inclusion15 decks136 decks
9%synergy
Castle Locthwain
10%inclusion14 decks136 decks
6%synergy
Urza's Saga
8.1%inclusion11 decks136 decks
1%synergy
Arid Archway
5.1%inclusion7 decks136 decks
4%synergy
Guildless Commons
5.1%inclusion7 decks136 decks
4%synergy
Nykthos, Shrine to Nyx
5.1%inclusion7 decks136 decks
0%synergy
Mana Artifacts
Sol Ring
89%inclusion121 decks136 decks
5%synergy
Arcane Signet
82%inclusion112 decks136 decks
10%synergy
Talisman of Hierarchy
72%inclusion98 decks136 decks
46%synergy
Orzhov Signet
56%inclusion76 decks136 decks
32%synergy
Fellwar Stone
37%inclusion50 decks136 decks
16%synergy
The Soul Stone
24%inclusion33 decks136 decks
20%synergy
Mind Stone
17%inclusion23 decks136 decks
2%synergy
Thought Vessel
15%inclusion21 decks136 decks
-2%synergy
Crowded Crypt
8.1%inclusion11 decks136 decks
7%synergy
Lotus Petal
7.4%inclusion10 decks136 decks
0%synergy
Wand of the Worldsoul
5.1%inclusion7 decks136 decks
4%synergy
Lands
Temple Garden
100%inclusion5 decks5 decks
61%synergy
Overgrown Tomb
100%inclusion5 decks5 decks
60%synergy
Command Tower
92%inclusion125 decks136 decks
18%synergy
Godless Shrine
82%inclusion111 decks136 decks
41%synergy
Isolated Chapel
79%inclusion107 decks136 decks
46%synergy
Caves of Koilos
74%inclusion100 decks136 decks
44%synergy
Fetid Heath
63%inclusion85 decks136 decks
50%synergy
Shattered Sanctum
63%inclusion85 decks136 decks
48%synergy
Overgrown Farmland
60%inclusion3 decks5 decks
43%synergy
Indatha Triome
60%inclusion3 decks5 decks
32%synergy
Woodland Cemetery
60%inclusion3 decks5 decks
29%synergy
Bleachbone Verge
54%inclusion73 decks136 decks
46%synergy
Vault of Champions
54%inclusion73 decks136 decks
29%synergy
Tainted Field
53%inclusion72 decks136 decks
40%synergy
Brightclimb Pathway
46%inclusion62 decks136 decks
37%synergy
Marsh Flats
45%inclusion61 decks136 decks
34%synergy
Shadowy Backstreet
43%inclusion59 decks136 decks
33%synergy
Shineshadow Snarl
39%inclusion53 decks136 decks
26%synergy
Exotic Orchard
31%inclusion42 decks136 decks
-5%synergy
Orzhov Basilica
29%inclusion39 decks136 decks
14%synergy
Silent Clearing
23%inclusion31 decks136 decks
18%synergy
Fabled Passage
22%inclusion30 decks136 decks
13%synergy
Temple of Silence
21%inclusion29 decks136 decks
4%synergy
Concealed Courtyard
21%inclusion28 decks136 decks
15%synergy
Desolate Mire
21%inclusion28 decks136 decks
15%synergy
Scrubland
15%inclusion21 decks136 decks
2%synergy
Windswept Heath
10%inclusion14 decks136 decks
-1%synergy
Verdant Catacombs
10%inclusion14 decks136 decks
-1%synergy
Sunlit Marsh
10%inclusion13 decks136 decks
5%synergy
Prismatic Vista
10%inclusion13 decks136 decks
5%synergy
Reflecting Pool
10%inclusion13 decks136 decks
4%synergy
Flooded Strand
10%inclusion13 decks136 decks
-2%synergy
Polluted Delta
8.8%inclusion12 decks136 decks
-3%synergy
Mana Confluence
8.1%inclusion11 decks136 decks
1%synergy
Bloodstained Mire
8.1%inclusion11 decks136 decks
-3%synergy
Evolving Wilds
8.1%inclusion11 decks136 decks
-13%synergy
City of Brass
7.4%inclusion10 decks136 decks
0%synergy
Arid Mesa
7.4%inclusion10 decks136 decks
-3%synergy
Myriad Landscape
7.4%inclusion10 decks136 decks
-9%synergy
Snowfield Sinkhole
6.6%inclusion9 decks136 decks
4%synergy