Mikaeus, the Unhallowed
Umbral Collar Zealot
Reaping Willow

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Reaping Willow without a +1/+1 counter on it on the battlefield).

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing Reaping Willow.
2
When Reaping Willow dies, its undying 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
0.3%inclusion11 decks4.21K decks
Orah, Skyclave Hierophant
0.2%inclusion8 decks3.32K decks
Vish Kal, Blood Arbiter
0.3%inclusion1 decks325 decks
Sefris of the Hidden Ways
0.0%inclusion1 decks11.6K decks
Celes, Rune Knight
0.0%inclusion1 decks9.24K decks
High Synergy Cards
Twilight Diviner
77%inclusion17 decks22 decks
75%synergy
Elas il-Kor, Sadistic Pilgrim
73%inclusion16 decks22 decks
63%synergy
Ashnod's Altar
55%inclusion12 decks22 decks
48%synergy
Selfless Spirit
50%inclusion11 decks22 decks
45%synergy
Emptiness
45%inclusion10 decks22 decks
45%synergy
Warren Soultrader
50%inclusion11 decks22 decks
44%synergy
Yawgmoth, Thran Physician
45%inclusion10 decks22 decks
42%synergy
Rhys, the Evermore
41%inclusion9 decks22 decks
40%synergy
Phyrexian Altar
41%inclusion9 decks22 decks
37%synergy
Phyrexian Tower
45%inclusion10 decks22 decks
36%synergy
Top Cards
Swords to Plowshares
59%inclusion13 decks22 decks
-2%synergy
Damn
45%inclusion10 decks22 decks
30%synergy
Path to Exile
45%inclusion10 decks22 decks
-2%synergy
Bastion of Remembrance
41%inclusion9 decks22 decks
34%synergy
Viscera Seer
41%inclusion9 decks22 decks
33%synergy
Pitiless Plunderer
41%inclusion9 decks22 decks
32%synergy
Luminous Broodmoth
36%inclusion8 decks22 decks
34%synergy
Morbid Opportunist
36%inclusion8 decks22 decks
29%synergy
Blood Artist
36%inclusion8 decks22 decks
25%synergy
Deadly Dispute
36%inclusion8 decks22 decks
24%synergy
Game Changers
Bolas's Citadel
14%inclusion3 decks22 decks
6%synergy
Demonic Tutor
14%inclusion3 decks22 decks
-5%synergy
Creatures
Taborax, Hope's Demise
32%inclusion7 decks22 decks
31%synergy
Edgewalker
32%inclusion7 decks22 decks
31%synergy
Metamorphosis Fanatic
32%inclusion7 decks22 decks
31%synergy
Weathered Wayfarer
32%inclusion7 decks22 decks
29%synergy
Cruel Celebrant
32%inclusion7 decks22 decks
25%synergy
Zulaport Cutthroat
32%inclusion7 decks22 decks
23%synergy
Skemfar Shadowsage
27%inclusion6 decks22 decks
27%synergy
Doomed Necromancer
27%inclusion6 decks22 decks
26%synergy
Fiend Hunter
27%inclusion6 decks22 decks
26%synergy
Adept Watershaper
27%inclusion6 decks22 decks
26%synergy
Master of Dark Rites
27%inclusion6 decks22 decks
26%synergy
Scholar of New Horizons
27%inclusion6 decks22 decks
26%synergy
Demon's Disciple
27%inclusion6 decks22 decks
26%synergy
Woe Strider
27%inclusion6 decks22 decks
25%synergy
Priest of Forgotten Gods
27%inclusion6 decks22 decks
25%synergy
Giver of Runes
27%inclusion6 decks22 decks
25%synergy
Grim Haruspex
27%inclusion6 decks22 decks
24%synergy
Vito, Thorn of the Dusk Rose
27%inclusion6 decks22 decks
22%synergy
Mother of Runes
27%inclusion6 decks22 decks
22%synergy
Rotlung Reanimator
23%inclusion5 decks22 decks
23%synergy
Vizier of Remedies
23%inclusion5 decks22 decks
23%synergy
Shadow-Rite Priest
23%inclusion5 decks22 decks
23%synergy
Geralf's Messenger
23%inclusion5 decks22 decks
22%synergy
Valgavoth's Faithful
23%inclusion5 decks22 decks
22%synergy
Priest of Gix
23%inclusion5 decks22 decks
22%synergy
Remorseful Cleric
23%inclusion5 decks22 decks
22%synergy
Children of Korlis
23%inclusion5 decks22 decks
22%synergy
Sister Hospitaller
23%inclusion5 decks22 decks
22%synergy
Starscape Cleric
23%inclusion5 decks22 decks
21%synergy
Inspiring Overseer
23%inclusion5 decks22 decks
21%synergy
Junji, the Midnight Sky
23%inclusion5 decks22 decks
20%synergy
Suture Priest
23%inclusion5 decks22 decks
20%synergy
Midnight Reaper
23%inclusion5 decks22 decks
20%synergy
Bartolomé del Presidio
23%inclusion5 decks22 decks
19%synergy
Mangara, the Diplomat
23%inclusion5 decks22 decks
18%synergy
Archivist of Oghma
23%inclusion5 decks22 decks
18%synergy
Marionette Apprentice
23%inclusion5 decks22 decks
18%synergy
Soul Warden
23%inclusion5 decks22 decks
17%synergy
Welcoming Vampire
23%inclusion5 decks22 decks
17%synergy
Witch Enchanter
23%inclusion5 decks22 decks
15%synergy
Sun Titan
23%inclusion5 decks22 decks
15%synergy
Gray Merchant of Asphodel
23%inclusion5 decks22 decks
14%synergy
Battletide Alchemist
18%inclusion4 decks22 decks
18%synergy
Moonlit Lamenter
18%inclusion4 decks22 decks
18%synergy
Alpharael, Stonechosen
18%inclusion4 decks22 decks
18%synergy
Minwu, White Mage
18%inclusion4 decks22 decks
18%synergy
Butcher Ghoul
18%inclusion4 decks22 decks
18%synergy
Leonin Relic-Warder
18%inclusion4 decks22 decks
18%synergy
Dawnbringer Cleric
18%inclusion4 decks22 decks
18%synergy
Moonshadow
18%inclusion4 decks22 decks
17%synergy
Instants
Malakir Rebirth
36%inclusion8 decks22 decks
28%synergy
Village Rites
32%inclusion7 decks22 decks
23%synergy
Generous Gift
27%inclusion6 decks22 decks
6%synergy
Anguished Unmaking
27%inclusion6 decks22 decks
3%synergy
Dark Ritual
27%inclusion6 decks22 decks
3%synergy
Entomb
23%inclusion5 decks22 decks
16%synergy
Fell the Profane
23%inclusion5 decks22 decks
14%synergy
Stroke of Midnight
23%inclusion5 decks22 decks
12%synergy
Requiting Hex
14%inclusion3 decks22 decks
13%synergy
Personify
14%inclusion3 decks22 decks
12%synergy
Despark
14%inclusion3 decks22 decks
0%synergy
Sorceries
Reanimate
36%inclusion8 decks22 decks
17%synergy
Victimize
32%inclusion7 decks22 decks
19%synergy
Austere Command
23%inclusion5 decks22 decks
11%synergy
Toxic Deluge
23%inclusion5 decks22 decks
5%synergy
Persist
18%inclusion4 decks22 decks
16%synergy
Buried Alive
18%inclusion4 decks22 decks
12%synergy
Perfect Intimidation
14%inclusion3 decks22 decks
13%synergy
Bogslither's Embrace
14%inclusion3 decks22 decks
13%synergy
Winnowing
14%inclusion3 decks22 decks
13%synergy
Aberrant Return
14%inclusion3 decks22 decks
12%synergy
Kaya's Wrath
14%inclusion3 decks22 decks
12%synergy
Agadeem's Awakening
14%inclusion3 decks22 decks
11%synergy
Dread Return
14%inclusion3 decks22 decks
9%synergy
Diabolic Tutor
14%inclusion3 decks22 decks
8%synergy
Damnation
14%inclusion3 decks22 decks
7%synergy
Diabolic Intent
14%inclusion3 decks22 decks
6%synergy
Night's Whisper
14%inclusion3 decks22 decks
4%synergy
Utility Artifacts
Skullclamp
32%inclusion7 decks22 decks
21%synergy
Altar of Dementia
27%inclusion6 decks22 decks
25%synergy
Pyre of Heroes
23%inclusion5 decks22 decks
22%synergy
Relic Vial
18%inclusion4 decks22 decks
18%synergy
Lightning Greaves
14%inclusion3 decks22 decks
-11%synergy
Enchantments
Ripples of Undeath
32%inclusion7 decks22 decks
27%synergy
Solemnity
23%inclusion5 decks22 decks
22%synergy
Cathars' Crusade
23%inclusion5 decks22 decks
18%synergy
Phyrexian Arena
18%inclusion4 decks22 decks
3%synergy
Thran Vigil
14%inclusion3 decks22 decks
13%synergy
Chthonian Nightmare
14%inclusion3 decks22 decks
12%synergy
Barrensteppe Siege
14%inclusion3 decks22 decks
12%synergy
Grave Venerations
14%inclusion3 decks22 decks
12%synergy
Dictate of Erebos
14%inclusion3 decks22 decks
11%synergy
Bitterblossom
14%inclusion3 decks22 decks
9%synergy
Grave Pact
14%inclusion3 decks22 decks
9%synergy
The Meathook Massacre
14%inclusion3 decks22 decks
9%synergy
Utility Lands
Bojuka Bog
36%inclusion8 decks22 decks
7%synergy
Starlit Sanctum
32%inclusion7 decks22 decks
31%synergy
Susur Secundi, Void Altar
27%inclusion6 decks22 decks
25%synergy
Westvale Abbey
23%inclusion5 decks22 decks
21%synergy
High Market
23%inclusion5 decks22 decks
20%synergy
Spymaster's Vault
18%inclusion4 decks22 decks
16%synergy
Abandoned Air Temple
18%inclusion4 decks22 decks
13%synergy
Three Tree City
18%inclusion4 decks22 decks
13%synergy
Urborg, Tomb of Yawgmoth
18%inclusion4 decks22 decks
9%synergy
Vault of the Archangel
18%inclusion4 decks22 decks
6%synergy
Nesting Grounds
14%inclusion3 decks22 decks
11%synergy
Takenuma, Abandoned Mire
14%inclusion3 decks22 decks
5%synergy
Reliquary Tower
14%inclusion3 decks22 decks
-16%synergy
Mana Artifacts
Sol Ring
73%inclusion16 decks22 decks
-11%synergy
Arcane Signet
68%inclusion15 decks22 decks
-4%synergy
Orzhov Signet
55%inclusion12 decks22 decks
32%synergy
Talisman of Hierarchy
41%inclusion9 decks22 decks
15%synergy
Mind Stone
14%inclusion3 decks22 decks
-1%synergy
Lands
Command Tower
82%inclusion18 decks22 decks
8%synergy
Isolated Chapel
73%inclusion16 decks22 decks
39%synergy
Caves of Koilos
68%inclusion15 decks22 decks
39%synergy
Godless Shrine
68%inclusion15 decks22 decks
27%synergy
Fetid Heath
55%inclusion12 decks22 decks
41%synergy
Bleachbone Verge
50%inclusion11 decks22 decks
42%synergy
Marsh Flats
50%inclusion11 decks22 decks
39%synergy
Shattered Sanctum
50%inclusion11 decks22 decks
35%synergy
Vault of Champions
50%inclusion11 decks22 decks
26%synergy
Shineshadow Snarl
41%inclusion9 decks22 decks
28%synergy
Tainted Field
41%inclusion9 decks22 decks
28%synergy
Brightclimb Pathway
36%inclusion8 decks22 decks
28%synergy
Shadowy Backstreet
36%inclusion8 decks22 decks
26%synergy
Path of Ancestry
36%inclusion8 decks22 decks
14%synergy
Desolate Mire
23%inclusion5 decks22 decks
16%synergy
Orzhov Basilica
23%inclusion5 decks22 decks
9%synergy
Silent Clearing
18%inclusion4 decks22 decks
14%synergy
Cavern of Souls
18%inclusion4 decks22 decks
11%synergy
Temple of Silence
18%inclusion4 decks22 decks
1%synergy
Evolving Wilds
18%inclusion4 decks22 decks
-2%synergy
Exotic Orchard
18%inclusion4 decks22 decks
-18%synergy
Abundant Countryside
14%inclusion3 decks22 decks
12%synergy
Secluded Courtyard
14%inclusion3 decks22 decks
9%synergy
Concealed Courtyard
14%inclusion3 decks22 decks
8%synergy
Windswept Heath
14%inclusion3 decks22 decks
3%synergy
Flooded Strand
14%inclusion3 decks22 decks
2%synergy