Eirdu, Carrier of Dawn
Umbral Collar Zealot
Zack Fair

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield and Zack Fair without a -1/-1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing Zack Fair.
2
When Zack Fair dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect.
3
Resolve the Umbral Collar Zealot ability.
4
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite death triggers
Infinite sacrifice triggers
Infinite surveil
Eirdu, Carrier of Dawn
16%inclusion634 decks3.99K decks
Felisa, Fang of Silverquill
0.3%inclusion3 decks933 decks
Ratadrabik of Urborg
0.1%inclusion2 decks2.12K decks
Elas il-Kor, Sadistic Pilgrim
0.1%inclusion2 decks2.94K decks
Tayam, Luminous Enigma
0.0%inclusion1 decks3.25K decks
Kambal, Profiteering Mayor
0.0%inclusion1 decks2.28K decks
Teysa Karlov
0.0%inclusion1 decks7.42K decks
Athreos, God of Passage
0.0%inclusion1 decks2.98K decks
Celes, Rune Knight
0.0%inclusion1 decks4.73K decks
New Cards
Shattered Acolyte
2.4%inclusion2 decks82 decks
2%synergy
Mighty Mutanimals
2.2%inclusion6 decks267 decks
2%synergy
Continue?
1.8%inclusion5 decks276 decks
0%synergy
South Wind Avatar
1.0%inclusion5 decks493 decks
0%synergy
Sally Pride, Lioness Leader
0.8%inclusion4 decks493 decks
0%synergy
High Synergy Cards
Viscera Seer
90%inclusion579 decks646 decks
82%synergy
Cruel Celebrant
82%inclusion530 decks646 decks
75%synergy
Elas il-Kor, Sadistic Pilgrim
84%inclusion542 decks646 decks
74%synergy
Vizier of Remedies
69%inclusion444 decks646 decks
69%synergy
Marionette Apprentice
69%inclusion444 decks646 decks
64%synergy
Zulaport Cutthroat
72%inclusion467 decks646 decks
64%synergy
Blood Artist
75%inclusion484 decks646 decks
64%synergy
Bastion of Remembrance
70%inclusion449 decks646 decks
63%synergy
Scholar of New Horizons
63%inclusion409 decks646 decks
62%synergy
Geralf's Messenger
61%inclusion396 decks646 decks
61%synergy
Top Cards
Swords to Plowshares
72%inclusion464 decks646 decks
11%synergy
Pitiless Plunderer
69%inclusion445 decks646 decks
60%synergy
Carrion Feeder
63%inclusion407 decks646 decks
59%synergy
Deadly Dispute
61%inclusion396 decks646 decks
49%synergy
Bartolomé del Presidio
61%inclusion393 decks646 decks
57%synergy
Ashnod's Altar
61%inclusion393 decks646 decks
54%synergy
Skullclamp
59%inclusion382 decks646 decks
48%synergy
Butcher Ghoul
59%inclusion378 decks646 decks
58%synergy
Corpse Knight
58%inclusion374 decks646 decks
53%synergy
Luminous Broodmoth
57%inclusion369 decks646 decks
54%synergy
Game Changers
Demonic Tutor
20%inclusion127 decks646 decks
1%synergy
Vampiric Tutor
14%inclusion90 decks646 decks
-1%synergy
Teferi's Protection
12%inclusion75 decks646 decks
-5%synergy
Enlightened Tutor
11%inclusion71 decks646 decks
-4%synergy
Ancient Tomb
8.7%inclusion56 decks646 decks
-1%synergy
The One Ring
8.0%inclusion52 decks646 decks
0%synergy
Necropotence
7.6%inclusion49 decks646 decks
2%synergy
Bolas's Citadel
7.3%inclusion47 decks646 decks
-1%synergy
Orcish Bowmasters
7.0%inclusion45 decks646 decks
-1%synergy
Mana Vault
5.3%inclusion34 decks646 decks
-1%synergy
Creatures
Solemn Simulacrum
57%inclusion367 decks646 decks
44%synergy
Grim Haruspex
56%inclusion363 decks646 decks
53%synergy
Woe Strider
55%inclusion356 decks646 decks
53%synergy
Morbid Opportunist
53%inclusion340 decks646 decks
45%synergy
Mikaeus, the Unhallowed
49%inclusion316 decks646 decks
46%synergy
Gray Merchant of Asphodel
49%inclusion315 decks646 decks
40%synergy
Warren Soultrader
48%inclusion307 decks646 decks
42%synergy
Midnight Reaper
46%inclusion295 decks646 decks
43%synergy
Vengeful Bloodwitch
45%inclusion292 decks646 decks
43%synergy
The Duke, Rebel Sentry
41%inclusion256 decks620 decks
41%synergy
Elenda, the Dusk Rose
36%inclusion233 decks646 decks
31%synergy
Sephiroth, Fabled SOLDIER
35%inclusion226 decks646 decks
33%synergy
Witch Enchanter
35%inclusion225 decks646 decks
27%synergy
Accursed Marauder
34%inclusion217 decks646 decks
28%synergy
Welcoming Vampire
34%inclusion217 decks646 decks
27%synergy
Sun Titan
34%inclusion217 decks646 decks
26%synergy
Syr Konrad, the Grim
33%inclusion213 decks646 decks
25%synergy
Junji, the Midnight Sky
33%inclusion212 decks646 decks
30%synergy
Rhys, the Evermore
33%inclusion194 decks592 decks
32%synergy
Braids, Arisen Nightmare
29%inclusion188 decks646 decks
22%synergy
Yawgmoth, Thran Physician
29%inclusion186 decks646 decks
26%synergy
Lotho, Corrupt Shirriff
26%inclusion166 decks646 decks
13%synergy
Yahenni, Undying Partisan
25%inclusion161 decks646 decks
22%synergy
Selfless Spirit
24%inclusion157 decks646 decks
20%synergy
Triskelion
24%inclusion155 decks646 decks
24%synergy
Syr Vondam, Sunstar Exemplar
24%inclusion154 decks646 decks
22%synergy
Teysa Karlov
23%inclusion151 decks646 decks
19%synergy
Pawn of Ulamog
23%inclusion150 decks646 decks
21%synergy
Voice of Victory
22%inclusion143 decks646 decks
16%synergy
Esper Sentinel
22%inclusion140 decks646 decks
3%synergy
Spirited Companion
20%inclusion130 decks646 decks
16%synergy
Emptiness
18%inclusion117 decks646 decks
18%synergy
Enduring Innocence
18%inclusion117 decks646 decks
14%synergy
Loran of the Third Path
17%inclusion111 decks646 decks
10%synergy
Bitterbloom Bearer
17%inclusion110 decks646 decks
15%synergy
Shriekmaw
17%inclusion109 decks646 decks
15%synergy
Twilight Diviner
16%inclusion94 decks586 decks
14%synergy
Agent Venom
16%inclusion101 decks646 decks
15%synergy
Bloodcrazed Paladin
14%inclusion92 decks646 decks
14%synergy
Wall of Omens
14%inclusion90 decks646 decks
11%synergy
Charismatic Conqueror
14%inclusion90 decks646 decks
11%synergy
Grand Abolisher
14%inclusion89 decks646 decks
5%synergy
Teysa, Orzhov Scion
13%inclusion81 decks646 decks
11%synergy
Boss's Chauffeur
11%inclusion74 decks646 decks
11%synergy
Boggart Trawler
11%inclusion71 decks646 decks
7%synergy
Boromir, Warden of the Tower
11%inclusion70 decks646 decks
7%synergy
Bone Devourer
11%inclusion69 decks646 decks
10%synergy
Sifter of Skulls
10%inclusion65 decks646 decks
9%synergy
Karmic Guide
10%inclusion65 decks646 decks
7%synergy
Knight of the White Orchid
10%inclusion62 decks646 decks
5%synergy
Instants
Path to Exile
56%inclusion364 decks646 decks
9%synergy
Dark Ritual
56%inclusion360 decks646 decks
31%synergy
Village Rites
51%inclusion329 decks646 decks
42%synergy
Anguished Unmaking
40%inclusion257 decks646 decks
15%synergy
Corrupted Conviction
36%inclusion235 decks646 decks
32%synergy
Flare of Fortitude
27%inclusion177 decks646 decks
23%synergy
Despark
27%inclusion175 decks646 decks
14%synergy
Generous Gift
27%inclusion172 decks646 decks
5%synergy
Plumb the Forbidden
26%inclusion166 decks646 decks
23%synergy
Fell the Profane
20%inclusion128 decks646 decks
11%synergy
Duty Beyond Death
18%inclusion115 decks646 decks
16%synergy
Malakir Rebirth
17%inclusion109 decks646 decks
9%synergy
Stroke of Midnight
16%inclusion102 decks646 decks
5%synergy
Inkshield
15%inclusion94 decks646 decks
8%synergy
Deadly Rollick
15%inclusion94 decks646 decks
1%synergy
Fracture
14%inclusion88 decks646 decks
8%synergy
Mortify
12%inclusion79 decks646 decks
2%synergy
Culling the Weak
12%inclusion77 decks646 decks
8%synergy
Silence
10%inclusion63 decks646 decks
3%synergy
Undying Evil
7.9%inclusion51 decks646 decks
7%synergy
Reprieve
7.7%inclusion50 decks646 decks
3%synergy
Flawless Maneuver
7.3%inclusion47 decks646 decks
-3%synergy
Imp's Mischief
7.0%inclusion45 decks646 decks
3%synergy
Flare of Malice
6.8%inclusion44 decks646 decks
4%synergy
Saw in Half
6.8%inclusion44 decks646 decks
3%synergy
Lethal Scheme
6.5%inclusion42 decks646 decks
4%synergy
Cabal Ritual
6.3%inclusion41 decks646 decks
1%synergy
Dawn's Truce
6.2%inclusion40 decks646 decks
-1%synergy
Restoration Magic
5.9%inclusion38 decks646 decks
2%synergy
Clever Concealment
5.4%inclusion35 decks646 decks
1%synergy
Sejiri Shelter
5.3%inclusion34 decks646 decks
2%synergy
Sorceries
Victimize
54%inclusion348 decks646 decks
41%synergy
Damn
44%inclusion287 decks646 decks
29%synergy
Reanimate
34%inclusion218 decks646 decks
15%synergy
Diabolic Intent
29%inclusion189 decks646 decks
22%synergy
Night's Whisper
23%inclusion149 decks646 decks
14%synergy
Toxic Deluge
22%inclusion144 decks646 decks
4%synergy
Austere Command
20%inclusion129 decks646 decks
8%synergy
Rite of Oblivion
15%inclusion96 decks646 decks
13%synergy
Dread Return
15%inclusion94 decks646 decks
10%synergy
Blasphemous Edict
15%inclusion94 decks646 decks
9%synergy
Sign in Blood
14%inclusion92 decks646 decks
6%synergy
Sevinne's Reclamation
14%inclusion88 decks646 decks
7%synergy
Feed the Swarm
9.3%inclusion60 decks646 decks
-7%synergy
Living Death
9.0%inclusion58 decks646 decks
4%synergy
Diabolic Tutor
7.4%inclusion48 decks646 decks
2%synergy
Agadeem's Awakening
7.0%inclusion45 decks646 decks
4%synergy
Vindicate
7.0%inclusion45 decks646 decks
1%synergy
Pitiless Carnage
6.2%inclusion40 decks646 decks
6%synergy
Raise the Past
5.7%inclusion37 decks646 decks
4%synergy
Morningtide's Light
5.6%inclusion36 decks646 decks
5%synergy
Grim Tutor
5.4%inclusion35 decks646 decks
1%synergy
Wrath of God
5.3%inclusion34 decks646 decks
1%synergy
Farewell
5.1%inclusion33 decks646 decks
-7%synergy
Utility Artifacts
Phyrexian Altar
39%inclusion254 decks646 decks
36%synergy
Lightning Greaves
35%inclusion229 decks646 decks
11%synergy
Altar of Dementia
31%inclusion199 decks646 decks
29%synergy
Swiftfoot Boots
27%inclusion175 decks646 decks
0%synergy
Blasting Station
27%inclusion173 decks646 decks
26%synergy
Oketra's Monument
14%inclusion90 decks646 decks
12%synergy
Spawning Pit
10%inclusion66 decks646 decks
10%synergy
Wayfarer's Bauble
7.6%inclusion49 decks646 decks
0%synergy
Jet Medallion
6.7%inclusion43 decks646 decks
3%synergy
Pearl Medallion
6.0%inclusion39 decks646 decks
3%synergy
Wishclaw Talisman
5.4%inclusion35 decks646 decks
0%synergy
Enchantments
Cathars' Crusade
52%inclusion338 decks646 decks
47%synergy
Solemnity
46%inclusion298 decks646 decks
45%synergy
Thran Vigil
38%inclusion244 decks646 decks
37%synergy
The Meathook Massacre
28%inclusion178 decks646 decks
22%synergy
Phyrexian Arena
26%inclusion170 decks646 decks
11%synergy
Black Market Connections
22%inclusion140 decks646 decks
10%synergy
Grave Pact
16%inclusion102 decks646 decks
11%synergy
Vampiric Rites
15%inclusion94 decks646 decks
12%synergy
Smothering Tithe
14%inclusion93 decks646 decks
-6%synergy
Bitterblossom
13%inclusion87 decks646 decks
9%synergy
Funeral Room // Awakening Hall
13%inclusion82 decks646 decks
11%synergy
Barrensteppe Siege
12%inclusion79 decks646 decks
10%synergy
Sothera, the Supervoid
12%inclusion77 decks646 decks
11%synergy
Fanatical Devotion
9.1%inclusion59 decks646 decks
9%synergy
Martyr's Cause
8.7%inclusion56 decks646 decks
8%synergy
Grave Venerations
8.1%inclusion48 decks591 decks
6%synergy
Felidar Retreat
7.7%inclusion50 decks646 decks
2%synergy
Land Tax
7.4%inclusion48 decks646 decks
1%synergy
Animate Dead
7.4%inclusion48 decks646 decks
-1%synergy
Dictate of Erebos
6.5%inclusion42 decks646 decks
3%synergy
Skrelv's Hive
6.3%inclusion41 decks646 decks
5%synergy
Trouble in Pairs
5.4%inclusion35 decks646 decks
1%synergy
Blind Obedience
5.1%inclusion33 decks646 decks
-1%synergy
Planeswalkers
Liliana, Dreadhorde General
11%inclusion73 decks646 decks
8%synergy
Utility Lands
Bojuka Bog
41%inclusion268 decks646 decks
12%synergy
High Market
37%inclusion241 decks646 decks
35%synergy
Phyrexian Tower
34%inclusion221 decks646 decks
25%synergy
Vault of the Archangel
22%inclusion144 decks646 decks
10%synergy
Abandoned Air Temple
20%inclusion126 decks620 decks
15%synergy
Reliquary Tower
20%inclusion128 decks646 decks
-10%synergy
Urborg, Tomb of Yawgmoth
18%inclusion115 decks646 decks
9%synergy
Susur Secundi, Void Altar
17%inclusion107 decks646 decks
14%synergy
Midgar, City of Mako
16%inclusion104 decks646 decks
13%synergy
Nesting Grounds
15%inclusion97 decks646 decks
13%synergy
Takenuma, Abandoned Mire
14%inclusion93 decks646 decks
6%synergy
Spymaster's Vault
9.4%inclusion61 decks646 decks
7%synergy
Eiganjo, Seat of the Empire
9.1%inclusion59 decks646 decks
2%synergy
Command Beacon
8.5%inclusion55 decks646 decks
4%synergy
Westvale Abbey
7.4%inclusion48 decks646 decks
5%synergy
Cabal Coffers
7.4%inclusion48 decks646 decks
-2%synergy
Urza's Saga
7.1%inclusion46 decks646 decks
0%synergy
Restless Fortress
6.3%inclusion41 decks646 decks
5%synergy
Mana Artifacts
Sol Ring
91%inclusion587 decks646 decks
7%synergy
Arcane Signet
90%inclusion584 decks646 decks
18%synergy
Talisman of Hierarchy
71%inclusion459 decks646 decks
45%synergy
Orzhov Signet
64%inclusion415 decks646 decks
41%synergy
Fellwar Stone
31%inclusion199 decks646 decks
10%synergy
Mind Stone
22%inclusion143 decks646 decks
8%synergy
Thought Vessel
16%inclusion101 decks646 decks
-2%synergy
The Soul Stone
11%inclusion73 decks646 decks
7%synergy
Lotus Petal
7.1%inclusion46 decks646 decks
0%synergy
Crowded Crypt
7.0%inclusion45 decks646 decks
6%synergy
Commander's Sphere
6.3%inclusion41 decks646 decks
-5%synergy
Lands
Command Tower
92%inclusion595 decks646 decks
18%synergy
Isolated Chapel
78%inclusion504 decks646 decks
44%synergy
Caves of Koilos
73%inclusion474 decks646 decks
44%synergy
Godless Shrine
62%inclusion398 decks646 decks
20%synergy
Fetid Heath
61%inclusion395 decks646 decks
48%synergy
Tainted Field
60%inclusion385 decks646 decks
47%synergy
Shattered Sanctum
50%inclusion320 decks646 decks
34%synergy
Shineshadow Snarl
47%inclusion301 decks646 decks
34%synergy
Vault of Champions
41%inclusion266 decks646 decks
18%synergy
Bleachbone Verge
40%inclusion256 decks646 decks
31%synergy
Marsh Flats
34%inclusion222 decks646 decks
24%synergy
Exotic Orchard
34%inclusion221 decks646 decks
-2%synergy
Brightclimb Pathway
33%inclusion214 decks646 decks
25%synergy
Orzhov Basilica
33%inclusion213 decks646 decks
19%synergy
Temple of Silence
33%inclusion210 decks646 decks
16%synergy
Shadowy Backstreet
31%inclusion198 decks646 decks
20%synergy
Desolate Mire
30%inclusion195 decks646 decks
24%synergy
Concealed Courtyard
20%inclusion129 decks646 decks
14%synergy
Silent Clearing
18%inclusion119 decks646 decks
14%synergy
Evolving Wilds
16%inclusion105 decks646 decks
-4%synergy
Scrubland
14%inclusion88 decks646 decks
0%synergy
Scoured Barrens
12%inclusion76 decks646 decks
3%synergy
Sunlit Marsh
11%inclusion72 decks646 decks
7%synergy
Myriad Landscape
11%inclusion70 decks646 decks
-5%synergy
Fabled Passage
11%inclusion68 decks646 decks
1%synergy
Terramorphic Expanse
10%inclusion63 decks646 decks
-5%synergy
Polluted Delta
9.3%inclusion60 decks646 decks
-3%synergy
Flooded Strand
9.1%inclusion59 decks646 decks
-2%synergy
Bloodstained Mire
8.7%inclusion56 decks646 decks
-3%synergy
Arid Mesa
8.2%inclusion53 decks646 decks
-2%synergy
Verdant Catacombs
7.0%inclusion45 decks646 decks
-4%synergy
Path of Ancestry
7.0%inclusion45 decks646 decks
-15%synergy
Windswept Heath
6.7%inclusion43 decks646 decks
-4%synergy
City of Brass
6.3%inclusion41 decks646 decks
-1%synergy
Prismatic Vista
6.0%inclusion39 decks646 decks
1%synergy
Demolition Field
5.6%inclusion36 decks646 decks
3%synergy
Snowfield Sinkhole
5.3%inclusion34 decks646 decks
3%synergy
Orzhov Guildgate
5.3%inclusion34 decks646 decks
1%synergy
Mana Confluence
5.3%inclusion34 decks646 decks
-2%synergy
Lazotep Quarry
5.1%inclusion33 decks646 decks
4%synergy