Cavalier of Night
Activated Sleeper
Umbral Collar Zealot

   Prerequisites

What do I need to start this combo?
Activated Sleeper in your graveyard.
Cavalier of Night and Umbral Collar Zealot on the battlefield.

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing Cavalier of Night.
2
When Cavalier of Night dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
3
When Activated Sleeper enters the battlefield, its first triggered ability from Cavalier of Night triggers; choose not to sacrifice a creature.
4
Resolve the Umbral Collar Zealot ability from step 1.
5
Activate Umbral Collar Zealot by sacrificing Activated Sleeper.
6
When Activated Sleeper dies, its last ability from Cavalier of Night triggers, returning itself from your graveyard to the battlefield as a copy of Cavalier of Night.
7
When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
8
Resolve the Umbral Collar Zealot ability from step 5.
9
Repeat from step 5.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite surveil
Meren of Clan Nel Toth
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Shadow the Hedgehog
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Moira, Urborg Haunt
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Junji, the Midnight Sky
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The Ever-Changing 'Dane
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Karador, Ghost Chieftain
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Sephiroth, Fabled SOLDIER
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Grist, Voracious Larva
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Dina, Essence Brewer
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Elmar, Ulvenwald Informant // Wernog, Rider's Chaplain
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Frodo, Adventurous Hobbit // Sam, Loyal Attendant
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Dina, Soul Steeper
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Honest Rutstein
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High Synergy Cards
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Viscera Seer
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Yawgmoth, Thran Physician
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Insidious Fungus
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Wight of the Reliquary
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Fiend Artisan
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Loyal Apprentice
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Mayhem Devil
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Instants
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Dark Ritual
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Abrupt Decay
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Deadly Dispute
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Revitalizing Repast
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Flare of Malice
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Corrupted Conviction
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Burnt Offering
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Unexpected Windfall
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Deflecting Swat
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Terminate
18%inclusion4 decks22 decks
Culling the Weak
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Kazuul's Fury
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Valakut Awakening
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Untimely Malfunction
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Not Dead After All
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Veil of Summer
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Chord of Calling
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Deadly Rollick
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Noxious Revival
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Heroic Intervention
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Withering Torment
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Bitter Triumph
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Sorceries
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Sevinne's Reclamation
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Buried Alive
38%inclusion46 decks120 decks
Toxic Deluge
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Seize the Spotlight
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Blasphemous Act
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Living Death
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Culling Ritual
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Song of Totentanz
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Vandalblast
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Eldritch Evolution
27%inclusion24 decks89 decks
Dread Return
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Damn
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Diabolic Intent
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Nature's Lore
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Faithless Looting
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Agadeem's Awakening
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Three Visits
21%inclusion19 decks89 decks
Farseek
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Unearth
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Life // Death
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Unmarked Grave
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Sundering Eruption
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Bala Ged Recovery
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Flare of Cultivation
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Rampant Growth
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Cultivate
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Persist
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Rise of the Witch-king
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Rally at the Hornburg
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Cathartic Reunion
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Immoral Bargain
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Malevolent Rumble
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Life from the Loam
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Blasphemous Edict
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Final Parting
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Lively Dirge
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Feed the Swarm
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Finale of Devastation
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Nature's Rhythm
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Incarnation Technique
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Primal Growth
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Green Sun's Zenith
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Utility Artifacts
Ashnod's Altar
57%inclusion68 decks120 decks
Skullclamp
55%inclusion66 decks120 decks
Phyrexian Altar
43%inclusion51 decks120 decks
Altar of Dementia
42%inclusion50 decks120 decks
Birthing Pod
40%inclusion36 decks89 decks
Hammer of Purphoros
32%inclusion7 decks22 decks
Urabrask's Forge
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Lightning Greaves
18%inclusion22 decks120 decks
The Fire Crystal
18%inclusion4 decks22 decks
Swiftfoot Boots
10%inclusion12 decks120 decks
Jet Medallion
6.7%inclusion8 decks120 decks
Mesmeric Orb
5.8%inclusion7 decks120 decks
Enchantments
Rising of the Day
32%inclusion7 decks22 decks
Birthing Ritual
31%inclusion28 decks89 decks
Ripples of Undeath
28%inclusion33 decks120 decks
Animate Dead
28%inclusion33 decks120 decks
Grave Pact
25%inclusion30 decks120 decks
Bastion of Remembrance
22%inclusion26 decks120 decks
The Meathook Massacre
20%inclusion24 decks120 decks
Pattern of Rebirth
19%inclusion17 decks89 decks
Journey to Eternity
19%inclusion17 decks89 decks
Fervor
18%inclusion4 decks22 decks
Mass Hysteria
18%inclusion4 decks22 decks
Insidious Roots
17%inclusion15 decks89 decks
Moldervine Reclamation
17%inclusion15 decks89 decks
Guardian Project
17%inclusion15 decks89 decks
Necromancy
15%inclusion18 decks120 decks
Chthonian Nightmare
14%inclusion17 decks120 decks
Alchemist's Talent
14%inclusion3 decks22 decks
Evolutionary Leap
12%inclusion11 decks89 decks
Sylvan Library
12%inclusion11 decks89 decks
Black Market Connections
12%inclusion14 decks120 decks
Teval's Judgment
11%inclusion13 decks120 decks
Dictate of Erebos
11%inclusion13 decks120 decks
Wild Growth
7.9%inclusion7 decks89 decks
Greater Good
6.7%inclusion6 decks89 decks
Thran Vigil
5.8%inclusion7 decks120 decks
Planeswalkers
Grist, the Hunger Tide
17%inclusion15 decks89 decks
Utility Lands
Phyrexian Tower
48%inclusion57 decks120 decks
High Market
44%inclusion53 decks120 decks
Great Furnace
41%inclusion9 decks22 decks
Bojuka Bog
39%inclusion47 decks120 decks
Shifting Woodland
34%inclusion30 decks89 decks
Boseiju, Who Endures
34%inclusion30 decks89 decks
Urborg, Tomb of Yawgmoth
33%inclusion40 decks120 decks
Yavimaya, Cradle of Growth
26%inclusion31 decks120 decks
Takenuma, Abandoned Mire
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Dryad Arbor
25%inclusion22 decks89 decks
Spymaster's Vault
19%inclusion23 decks120 decks
Sokenzan, Crucible of Defiance
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Cabal Coffers
14%inclusion17 decks120 decks
Arena of Glory
14%inclusion3 decks22 decks
Midgar, City of Mako
13%inclusion15 decks120 decks
Reliquary Tower
12%inclusion14 decks120 decks
Susur Secundi, Void Altar
11%inclusion13 decks120 decks
Grim Backwoods
10%inclusion9 decks89 decks
Crypt of Agadeem
8.3%inclusion10 decks120 decks
Khalni Garden
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Vault of Whispers
7.5%inclusion9 decks120 decks
Witch's Cottage
6.7%inclusion8 decks120 decks
Westvale Abbey
5.8%inclusion7 decks120 decks
Treasure Vault
5.8%inclusion7 decks120 decks
Castle Locthwain
5.8%inclusion7 decks120 decks
Darksteel Citadel
5.8%inclusion7 decks120 decks
Rogue's Passage
5.8%inclusion7 decks120 decks
Mana Artifacts
Sol Ring
85%inclusion102 decks120 decks
Rakdos Signet
50%inclusion11 decks22 decks
Talisman of Indulgence
50%inclusion11 decks22 decks
Arcane Signet
49%inclusion59 decks120 decks
Talisman of Hierarchy
33%inclusion4 decks12 decks
Talisman of Dominance
33%inclusion3 decks9 decks
Cursed Mirror
18%inclusion4 decks22 decks
Talisman of Resilience
13%inclusion12 decks89 decks
Fellwar Stone
12%inclusion14 decks120 decks
Mind Stone
9.2%inclusion11 decks120 decks
The Soul Stone
5.9%inclusion7 decks118 decks
Lotus Petal
5.8%inclusion7 decks120 decks
Thought Vessel
5.8%inclusion7 decks120 decks
Golgari Signet
5.6%inclusion5 decks89 decks
Lands
Command Tower
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Breeding Pool
75%inclusion3 decks4 decks
Llanowar Wastes
73%inclusion65 decks89 decks
Woodland Cemetery
67%inclusion60 decks89 decks
Overgrown Tomb
67%inclusion60 decks89 decks
Shipwreck Marsh
67%inclusion6 decks9 decks
Spire Garden
67%inclusion4 decks6 decks
Stomping Ground
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Sulfurous Springs
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Deserted Beach
60%inclusion3 decks5 decks
Raffine's Tower
60%inclusion3 decks5 decks
Indatha Triome
57%inclusion4 decks7 decks
Temple Garden
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Watery Grave
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Twilight Mire
54%inclusion48 decks89 decks
Caves of Koilos
50%inclusion6 decks12 decks
Isolated Chapel
50%inclusion6 decks12 decks
Dragonskull Summit
50%inclusion11 decks22 decks
Godless Shrine
50%inclusion6 decks12 decks
Tainted Wood
48%inclusion43 decks89 decks
Deathcap Glade
48%inclusion43 decks89 decks
Undergrowth Stadium
47%inclusion42 decks89 decks
Underground Mortuary
46%inclusion41 decks89 decks
Undercity Sewers
44%inclusion4 decks9 decks
Underground River
44%inclusion4 decks9 decks
Drowned Catacomb
44%inclusion4 decks9 decks
Lush Portico
43%inclusion3 decks7 decks
Hushwood Verge
43%inclusion3 decks7 decks
Bountiful Promenade
43%inclusion3 decks7 decks
Shadowy Backstreet
42%inclusion5 decks12 decks
Vault of Champions
42%inclusion5 decks12 decks
Smoldering Marsh
41%inclusion9 decks22 decks
Blood Crypt
41%inclusion9 decks22 decks
Wastewood Verge
40%inclusion36 decks89 decks
Verdant Catacombs
38%inclusion46 decks120 decks
Raucous Theater
36%inclusion8 decks22 decks
Shadowblood Ridge
36%inclusion8 decks22 decks
Necroblossom Snarl
36%inclusion32 decks89 decks
Port of Karfell
33%inclusion3 decks9 decks
Gloomlake Verge
33%inclusion3 decks9 decks
Darkbore Pathway
33%inclusion29 decks89 decks
Vernal Fen
33%inclusion29 decks89 decks
Exotic Orchard
33%inclusion39 decks120 decks
Graven Cairns
32%inclusion7 decks22 decks
Haunted Ridge
32%inclusion7 decks22 decks
Luxury Suite
32%inclusion7 decks22 decks
Nurturing Peatland
31%inclusion28 decks89 decks
Blooming Marsh
29%inclusion26 decks89 decks
Drossforge Bridge
27%inclusion6 decks22 decks
Mount Doom
27%inclusion6 decks22 decks