Eirdu, Carrier of Dawn
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).

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing the undying 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 undying creature.
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
41%inclusion301 decks741 decks
Top Commanders
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0.4%inclusion1 decks258 decks
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0.1%inclusion1 decks1.11K decks
Tevesh Szat, Doom of Fools // Yoshimaru, Ever Faithful
3.4%inclusion1 decks29 decks
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100%inclusion1 decks1 decks
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0.0%inclusion1 decks3.98K decks
New Cards
Formidable Speaker
31%inclusion4 decks13 decks
30%synergy
Bitterbloom Bearer
24%inclusion87 decks369 decks
23%synergy
Emptiness
23%inclusion86 decks369 decks
23%synergy
Redirect Lightning
12%inclusion3 decks26 decks
6%synergy
Haru, Hidden Talent
7.1%inclusion1 decks14 decks
5%synergy
High Synergy Cards
Murderous Redcap
88%inclusion23 decks26 decks
87%synergy
Goblin Bombardment
92%inclusion24 decks26 decks
87%synergy
Viscera Seer
84%inclusion309 decks369 decks
75%synergy
Elas il-Kor, Sadistic Pilgrim
73%inclusion270 decks369 decks
63%synergy
Ashnod's Altar
69%inclusion256 decks369 decks
63%synergy
Zulaport Cutthroat
67%inclusion249 decks369 decks
59%synergy
Warren Soultrader
62%inclusion228 decks369 decks
56%synergy
Carrion Feeder
61%inclusion224 decks369 decks
56%synergy
Pitiless Plunderer
64%inclusion238 decks369 decks
56%synergy
Mayhem Devil
65%inclusion17 decks26 decks
55%synergy
Top Cards
Swords to Plowshares
62%inclusion229 decks369 decks
1%synergy
Cruel Celebrant
61%inclusion226 decks369 decks
54%synergy
Blood Artist
61%inclusion225 decks369 decks
49%synergy
Phyrexian Altar
56%inclusion207 decks369 decks
53%synergy
Skullclamp
55%inclusion203 decks369 decks
44%synergy
Dark Ritual
53%inclusion194 decks369 decks
28%synergy
Path to Exile
52%inclusion192 decks369 decks
5%synergy
Marionette Apprentice
51%inclusion189 decks369 decks
46%synergy
Mikaeus, the Unhallowed
50%inclusion184 decks369 decks
47%synergy
Luminous Broodmoth
50%inclusion183 decks369 decks
47%synergy
Game Changers
Demonic Tutor
28%inclusion103 decks369 decks
8%synergy
Underworld Breach
23%inclusion6 decks26 decks
17%synergy
Gamble
19%inclusion5 decks26 decks
10%synergy
Vampiric Tutor
17%inclusion62 decks369 decks
1%synergy
Ancient Tomb
13%inclusion49 decks369 decks
4%synergy
Orcish Bowmasters
10%inclusion37 decks369 decks
1%synergy
Imperial Seal
7.9%inclusion29 decks369 decks
2%synergy
Necropotence
7.3%inclusion27 decks369 decks
2%synergy
Chrome Mox
7.3%inclusion27 decks369 decks
1%synergy
Mana Vault
6.8%inclusion25 decks369 decks
1%synergy
Creatures
Grim Haruspex
48%inclusion177 decks369 decks
45%synergy
Solemn Simulacrum
47%inclusion174 decks369 decks
34%synergy
Witch Enchanter
46%inclusion171 decks369 decks
39%synergy
Corpse Knight
44%inclusion163 decks369 decks
39%synergy
Kitchen Finks
43%inclusion6 decks14 decks
43%synergy
Birds of Paradise
43%inclusion6 decks14 decks
15%synergy
Sephiroth, Fabled SOLDIER
43%inclusion157 decks369 decks
40%synergy
Geralf's Messenger
42%inclusion154 decks369 decks
41%synergy
Yawgmoth, Thran Physician
41%inclusion151 decks369 decks
38%synergy
Woe Strider
40%inclusion146 decks369 decks
38%synergy
Terra, Herald of Hope
38%inclusion10 decks26 decks
38%synergy
Imperial Recruiter
38%inclusion10 decks26 decks
34%synergy
Anger
38%inclusion10 decks26 decks
32%synergy
Scholar of New Horizons
38%inclusion140 decks369 decks
37%synergy
Bartolomé del Presidio
37%inclusion137 decks369 decks
33%synergy
Aftermath Analyst
36%inclusion5 decks14 decks
32%synergy
Honest Rutstein
36%inclusion5 decks14 decks
31%synergy
Disciple of Freyalise
36%inclusion5 decks14 decks
30%synergy
Sakura-Tribe Elder
36%inclusion5 decks14 decks
19%synergy
Eternal Witness
36%inclusion5 decks14 decks
18%synergy
Morbid Opportunist
35%inclusion130 decks369 decks
28%synergy
Midnight Reaper
33%inclusion121 decks369 decks
30%synergy
Gray Merchant of Asphodel
32%inclusion119 decks369 decks
24%synergy
Lotho, Corrupt Shirriff
31%inclusion115 decks369 decks
18%synergy
Esper Sentinel
30%inclusion110 decks369 decks
11%synergy
Wood Elves
29%inclusion4 decks14 decks
24%synergy
Wight of the Reliquary
29%inclusion4 decks14 decks
23%synergy
Alesha, Who Laughs at Fate
27%inclusion7 decks26 decks
23%synergy
Chainer, Nightmare Adept
27%inclusion7 decks26 decks
22%synergy
Pawn of Ulamog
26%inclusion97 decks369 decks
24%synergy
Vizier of Remedies
25%inclusion93 decks369 decks
25%synergy
Elenda, the Dusk Rose
25%inclusion93 decks369 decks
20%synergy
Charismatic Conqueror
25%inclusion92 decks369 decks
22%synergy
Welcoming Vampire
24%inclusion87 decks369 decks
18%synergy
Sun Titan
23%inclusion85 decks369 decks
15%synergy
Loran of the Third Path
22%inclusion82 decks369 decks
15%synergy
Butcher Ghoul
22%inclusion81 decks369 decks
22%synergy
Braids, Arisen Nightmare
22%inclusion81 decks369 decks
15%synergy
Safehold Elite
21%inclusion3 decks14 decks
21%synergy
Melira, Sylvok Outcast
21%inclusion3 decks14 decks
21%synergy
Basking Broodscale
21%inclusion3 decks14 decks
20%synergy
Fiend Artisan
21%inclusion3 decks14 decks
19%synergy
Warden of the Grove
21%inclusion3 decks14 decks
19%synergy
Satyr Wayfinder
21%inclusion3 decks14 decks
19%synergy
Endurance
21%inclusion3 decks14 decks
19%synergy
Good-Fortune Unicorn
21%inclusion3 decks14 decks
19%synergy
Devoted Druid
21%inclusion3 decks14 decks
19%synergy
Ouroboroid
21%inclusion3 decks14 decks
19%synergy
Spore Frog
21%inclusion3 decks14 decks
18%synergy
Meren of Clan Nel Toth
21%inclusion3 decks14 decks
18%synergy
Instants
Deadly Dispute
46%inclusion171 decks369 decks
34%synergy
Anguished Unmaking
44%inclusion163 decks369 decks
20%synergy
Village Rites
38%inclusion141 decks369 decks
29%synergy
Deflecting Swat
31%inclusion8 decks26 decks
14%synergy
Generous Gift
31%inclusion113 decks369 decks
8%synergy
Fell the Profane
30%inclusion110 decks369 decks
21%synergy
Malakir Rebirth
28%inclusion105 decks369 decks
20%synergy
Plumb the Forbidden
24%inclusion89 decks369 decks
22%synergy
Corrupted Conviction
24%inclusion88 decks369 decks
19%synergy
Flare of Fortitude
23%inclusion84 decks369 decks
19%synergy
Assassin's Trophy
21%inclusion3 decks14 decks
-9%synergy
Heroic Intervention
21%inclusion3 decks14 decks
-9%synergy
Burnt Offering
19%inclusion5 decks26 decks
17%synergy
Pyroblast
19%inclusion5 decks26 decks
13%synergy
Big Score
19%inclusion5 decks26 decks
9%synergy
Inkshield
19%inclusion69 decks369 decks
12%synergy
Despark
18%inclusion66 decks369 decks
4%synergy
Deadly Rollick
17%inclusion61 decks369 decks
3%synergy
Red Elemental Blast
15%inclusion4 decks26 decks
9%synergy
Culling the Weak
14%inclusion53 decks369 decks
10%synergy
Enlightened Tutor
14%inclusion51 decks369 decks
-2%synergy
Saw in Half
13%inclusion48 decks369 decks
9%synergy
First Day of Class
12%inclusion3 decks26 decks
11%synergy
Crackling Doom
12%inclusion3 decks26 decks
4%synergy
Untimely Malfunction
12%inclusion3 decks26 decks
4%synergy
Stroke of Midnight
11%inclusion40 decks369 decks
0%synergy
Clever Concealment
10%inclusion37 decks369 decks
6%synergy
Teferi's Protection
10%inclusion36 decks369 decks
-7%synergy
Flare of Malice
9.5%inclusion35 decks369 decks
7%synergy
Silence
9.5%inclusion35 decks369 decks
3%synergy
Afterlife Insurance
9.2%inclusion34 decks369 decks
8%synergy
Imp's Mischief
9.2%inclusion34 decks369 decks
6%synergy
Ephemerate
9.2%inclusion34 decks369 decks
3%synergy
Reprieve
8.9%inclusion33 decks369 decks
5%synergy
Fracture
8.7%inclusion32 decks369 decks
3%synergy
Entomb
7.9%inclusion29 decks369 decks
1%synergy
Flawless Maneuver
7.6%inclusion28 decks369 decks
-3%synergy
Cauldron Haze
7.3%inclusion27 decks369 decks
7%synergy
Dawn's Truce
7.0%inclusion26 decks369 decks
0%synergy
Sejiri Shelter
6.8%inclusion25 decks369 decks
4%synergy
Mortify
6.8%inclusion25 decks369 decks
-4%synergy
Cabal Ritual
6.5%inclusion24 decks369 decks
1%synergy
Duty Beyond Death
5.7%inclusion21 decks369 decks
4%synergy
Sorceries
Victimize
42%inclusion155 decks369 decks
30%synergy
Damn
38%inclusion140 decks369 decks
22%synergy
Reanimate
36%inclusion131 decks369 decks
17%synergy
Diabolic Intent
33%inclusion121 decks369 decks
25%synergy
Faithless Looting
31%inclusion8 decks26 decks
15%synergy
Toxic Deluge
24%inclusion90 decks369 decks
6%synergy
Blasphemous Act
23%inclusion6 decks26 decks
-10%synergy
Night's Whisper
18%inclusion67 decks369 decks
9%synergy
Blasphemous Edict
16%inclusion59 decks369 decks
10%synergy
Agadeem's Awakening
15%inclusion57 decks369 decks
12%synergy
Jeska's Will
15%inclusion4 decks26 decks
0%synergy
Sevinne's Reclamation
13%inclusion49 decks369 decks
6%synergy
Living Death
12%inclusion45 decks369 decks
7%synergy
Austere Command
12%inclusion45 decks369 decks
0%synergy
Sundering Eruption
12%inclusion3 decks26 decks
8%synergy
Sign in Blood
11%inclusion40 decks369 decks
2%synergy
Dread Return
10%inclusion37 decks369 decks
5%synergy
Raise the Past
8.4%inclusion31 decks369 decks
7%synergy
Farewell
7.9%inclusion29 decks369 decks
-5%synergy
Rite of Oblivion
6.5%inclusion24 decks369 decks
4%synergy
Beseech the Mirror
6.2%inclusion23 decks369 decks
3%synergy
Morningtide's Light
6.0%inclusion22 decks369 decks
6%synergy
Insatiable Avarice
5.7%inclusion21 decks369 decks
3%synergy
Utility Artifacts
Altar of Dementia
42%inclusion156 decks369 decks
40%synergy
Lightning Greaves
31%inclusion114 decks369 decks
6%synergy
The Great Henge
29%inclusion4 decks14 decks
19%synergy
Blasting Station
28%inclusion103 decks369 decks
27%synergy
Swiftfoot Boots
19%inclusion70 decks369 decks
-8%synergy
Oketra's Monument
14%inclusion52 decks369 decks
12%synergy
Bolas's Citadel
8.9%inclusion33 decks369 decks
1%synergy
Pearl Medallion
8.7%inclusion32 decks369 decks
6%synergy
Spawning Pit
8.4%inclusion31 decks369 decks
8%synergy
The One Ring
7.9%inclusion29 decks369 decks
-1%synergy
Jet Medallion
7.3%inclusion27 decks369 decks
4%synergy
Cauldron of Souls
6.2%inclusion23 decks369 decks
6%synergy
Wayfarer's Bauble
6.0%inclusion22 decks369 decks
-2%synergy
Enchantments
Bastion of Remembrance
49%inclusion181 decks369 decks
43%synergy
Impact Tremors
42%inclusion11 decks26 decks
32%synergy
Cathars' Crusade
42%inclusion156 decks369 decks
37%synergy
Solemnity
35%inclusion128 decks369 decks
34%synergy
Thran Vigil
29%inclusion107 decks369 decks
29%synergy
The Meathook Massacre
29%inclusion107 decks369 decks
24%synergy
Insidious Roots
29%inclusion4 decks14 decks
23%synergy
Black Market Connections
28%inclusion104 decks369 decks
16%synergy
Bitterblossom
25%inclusion94 decks369 decks
21%synergy
Phyrexian Arena
22%inclusion81 decks369 decks
6%synergy
Abzan Ascendancy
21%inclusion3 decks14 decks
20%synergy
Grave Pact
21%inclusion77 decks369 decks
16%synergy
Warleader's Call
19%inclusion5 decks26 decks
12%synergy
Smothering Tithe
15%inclusion54 decks369 decks
-7%synergy
Animate Dead
13%inclusion47 decks369 decks
4%synergy
Sothera, the Supervoid
10%inclusion38 decks369 decks
9%synergy
Funeral Room // Awakening Hall
10%inclusion36 decks369 decks
8%synergy
Land Tax
10%inclusion36 decks369 decks
3%synergy
Fanatical Devotion
7.9%inclusion29 decks369 decks
7%synergy
Martyr's Cause
7.0%inclusion26 decks369 decks
7%synergy
Dictate of Erebos
7.0%inclusion26 decks369 decks
4%synergy
Barrensteppe Siege
6.8%inclusion25 decks369 decks
5%synergy
Trouble in Pairs
6.8%inclusion25 decks369 decks
2%synergy
Tocasia's Welcome
6.5%inclusion24 decks369 decks
3%synergy
Felidar Retreat
5.7%inclusion21 decks369 decks
0%synergy
Skrelv's Hive
5.4%inclusion20 decks369 decks
4%synergy
Planeswalkers
Grist, the Hunger Tide
21%inclusion3 decks14 decks
17%synergy
Liliana, Dreadhorde General
13%inclusion48 decks369 decks
9%synergy
Utility Lands
Phyrexian Tower
51%inclusion188 decks369 decks
42%synergy
Boseiju, Who Endures
43%inclusion6 decks14 decks
24%synergy
Bojuka Bog
40%inclusion148 decks369 decks
10%synergy
High Market
31%inclusion114 decks369 decks
28%synergy
Urborg, Tomb of Yawgmoth
31%inclusion113 decks369 decks
22%synergy
Takenuma, Abandoned Mire
24%inclusion89 decks369 decks
15%synergy
Susur Secundi, Void Altar
22%inclusion83 decks369 decks
20%synergy
Shifting Woodland
21%inclusion3 decks14 decks
14%synergy
Reliquary Tower
21%inclusion77 decks369 decks
-9%synergy
Midgar, City of Mako
19%inclusion69 decks369 decks
15%synergy
Vault of the Archangel
17%inclusion61 decks369 decks
4%synergy
Spymaster's Vault
15%inclusion57 decks369 decks
13%synergy
Eiganjo, Seat of the Empire
15%inclusion54 decks369 decks
7%synergy
Westvale Abbey
13%inclusion47 decks369 decks
11%synergy
Cabal Coffers
11%inclusion40 decks369 decks
1%synergy
Nesting Grounds
10%inclusion37 decks369 decks
8%synergy
Urza's Saga
8.1%inclusion30 decks369 decks
1%synergy
Command Beacon
7.3%inclusion27 decks369 decks
2%synergy
Nykthos, Shrine to Nyx
6.8%inclusion25 decks369 decks
1%synergy
Abandoned Air Temple
6.4%inclusion12 decks187 decks
1%synergy
Castle Locthwain
6.2%inclusion23 decks369 decks
2%synergy
Emergence Zone
6.0%inclusion22 decks369 decks
4%synergy
Three Tree City
5.4%inclusion20 decks369 decks
0%synergy
Mana Artifacts
Sol Ring
86%inclusion319 decks369 decks
3%synergy
Arcane Signet
84%inclusion310 decks369 decks
12%synergy
Talisman of Hierarchy
68%inclusion251 decks369 decks
42%synergy
Talisman of Indulgence
58%inclusion15 decks26 decks
30%synergy
Orzhov Signet
53%inclusion195 decks369 decks
29%synergy
Talisman of Conviction
46%inclusion12 decks26 decks
22%synergy
Fellwar Stone
36%inclusion131 decks369 decks
15%synergy
The Soul Stone
22%inclusion80 decks369 decks
18%synergy
Talisman of Unity
21%inclusion3 decks14 decks
14%synergy
Talisman of Resilience
21%inclusion3 decks14 decks
9%synergy
Boros Signet
19%inclusion5 decks26 decks
-1%synergy
Rakdos Signet
19%inclusion5 decks26 decks
-7%synergy
Mind Stone
15%inclusion56 decks369 decks
0%synergy
Thought Vessel
13%inclusion48 decks369 decks
-5%synergy
Lotus Petal
7.9%inclusion29 decks369 decks
1%synergy
Crowded Crypt
7.3%inclusion27 decks369 decks
6%synergy
Lands
Command Tower
91%inclusion334 decks369 decks
16%synergy
Temple Garden
86%inclusion12 decks14 decks
47%synergy
Overgrown Tomb
86%inclusion12 decks14 decks
45%synergy
Godless Shrine
79%inclusion290 decks369 decks
38%synergy
Sacred Foundry
77%inclusion20 decks26 decks
41%synergy
Blood Crypt
73%inclusion19 decks26 decks
36%synergy
Isolated Chapel
73%inclusion269 decks369 decks
40%synergy
Caves of Koilos
69%inclusion256 decks369 decks
40%synergy
Fetid Heath
56%inclusion205 decks369 decks
43%synergy
Shattered Sanctum
54%inclusion201 decks369 decks
40%synergy
Vault of Champions
54%inclusion199 decks369 decks
30%synergy
Battlefield Forge
54%inclusion14 decks26 decks
25%synergy
Lush Portico
50%inclusion7 decks14 decks
41%synergy
Underground Mortuary
50%inclusion7 decks14 decks
37%synergy
Clifftop Retreat
50%inclusion13 decks26 decks
15%synergy
Marsh Flats
49%inclusion179 decks369 decks
38%synergy
Bleachbone Verge
47%inclusion173 decks369 decks
39%synergy
Tainted Field
47%inclusion172 decks369 decks
34%synergy
Luxury Suite
46%inclusion12 decks26 decks
22%synergy
Savai Triome
46%inclusion12 decks26 decks
22%synergy
Dragonskull Summit
46%inclusion12 decks26 decks
12%synergy
Overgrown Farmland
43%inclusion6 decks14 decks
25%synergy
Indatha Triome
43%inclusion6 decks14 decks
15%synergy
Shadowy Backstreet
43%inclusion157 decks369 decks
32%synergy
Spectator Seating
42%inclusion11 decks26 decks
19%synergy
Sulfurous Springs
38%inclusion10 decks26 decks
15%synergy
Brightclimb Pathway
36%inclusion133 decks369 decks
28%synergy
Deathcap Glade
36%inclusion5 decks14 decks
23%synergy
Woodland Cemetery
36%inclusion5 decks14 decks
4%synergy
Elegant Parlor
35%inclusion9 decks26 decks
27%synergy
Raucous Theater
35%inclusion9 decks26 decks
24%synergy
Nomad Outpost
35%inclusion9 decks26 decks
5%synergy
Shineshadow Snarl
32%inclusion118 decks369 decks
19%synergy
Exotic Orchard
32%inclusion117 decks369 decks
-5%synergy
Savannah
29%inclusion4 decks14 decks
16%synergy
Bayou
29%inclusion4 decks14 decks
15%synergy
Brushland
29%inclusion4 decks14 decks
9%synergy
Sandsteppe Citadel
29%inclusion4 decks14 decks
3%synergy
Llanowar Wastes
29%inclusion4 decks14 decks
2%synergy
Sunpetal Grove
29%inclusion4 decks14 decks
1%synergy
Orzhov Basilica
27%inclusion101 decks369 decks
13%synergy
Plateau
27%inclusion7 decks26 decks
15%synergy
Badlands
27%inclusion7 decks26 decks
14%synergy
Silent Clearing
25%inclusion94 decks369 decks
21%synergy
Temple of Silence
23%inclusion86 decks369 decks
6%synergy
Blazemire Verge
23%inclusion6 decks26 decks
12%synergy
Rugged Prairie
23%inclusion6 decks26 decks
9%synergy
Smoldering Marsh
23%inclusion6 decks26 decks
-10%synergy
Wooded Bastion
21%inclusion3 decks14 decks
18%synergy
Nurturing Peatland
21%inclusion3 decks14 decks
16%synergy