Cavalier of Night + Activated Sleeper + Yahenni, Undying Partisan

Cavalier of Night

Activated Sleeper

Yahenni, Undying Partisan

Requires

Cavalier of Night must be on the battlefield. Activated Sleeper must be in the graveyard. Yahenni, Undying Partisan must be on the battlefield.

Steps

Activate Yahenni, Undying Partisan by sacrificing Cavalier of Night.
When Cavalier of Night dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
When Activated Sleeper enters the battlefield, its first triggered ability from Cavalier of Night triggers; choose not to sacrifice a creature.
Resolve the Yahenni, Undying Partisan ability from step 1.
Activate Yahenni, Undying Partisan by sacrificing Activated Sleeper.
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.
When Activated Sleeper enters the battlefield, it triggers; choose not to sacrifice a creature.
Resolve the Yahenni, Undying Partisan ability from step 5.
Repeat from step 5.

Results

Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

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Meren of Clan Nel Toth

0.75% of 16614 decks 125 decks

Moira, Urborg Haunt

17.48% of 103 decks 18 decks

Teysa Karlov

0.02% of 16626 decks 4 decks

Drivnod, Carnage Dominus

0.20% of 1013 decks 2 decks

Karador, Ghost Chieftain

0.04% of 5646 decks 2 decks

Ludevic, Necro-Alchemist // Tormod, the Desecrator

3.08% of 65 decks 2 decks

Sefris of the Hidden Ways

0.02% of 9212 decks 2 decks

Ayara, First of Locthwain

0.04% of 5351 decks 2 decks

Othelm, Sigardian Outcast // Wernog, Rider's Chaplain

0.11% of 909 decks 1 decks

The Ever-Changing 'Dane

0.12% of 804 decks 1 decks

Yahenni, Undying Partisan

0.10% of 1015 decks 1 decks

Nethroi, Apex of Death

0.02% of 6126 decks 1 decks

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Marchesa, the Black Rose

0.01% of 10361 decks 1 decks

Kodama of the East Tree // Tormod, the Desecrator

0.65% of 154 decks 1 decks

Haakon, Stromgald Scourge

0.44% of 227 decks 1 decks

Sidar Kondo of Jamuraa // Tormod, the Desecrator

0.44% of 227 decks 1 decks

Grist, the Hunger Tide

0.02% of 6083 decks 1 decks

Ghoulcaller Gisa

0.03% of 3201 decks 1 decks

New Cards

Will of the Abzan

8% of 13 decks +6% synergy

Kishla Village

6% of 16 decks +5% synergy

Teval's Judgment

6% of 17 decks +3% synergy

Welcome the Dead

6% of 17 decks +5% synergy

High Synergy Cards

Saffi Eriksdotter

100% of 5 decks +99% synergy

Spore Frog

88% of 133 decks +85% synergy

Haywire Mite

89% of 133 decks +85% synergy

Viscera Seer

93% of 169 decks +85% synergy

Grim Haruspex

85% of 169 decks +81% synergy

Protean Hulk

82% of 133 decks +80% synergy

Likeness Looter

83% of 6 decks +80% synergy

Renegade Rallier

80% of 5 decks +80% synergy

Zulaport Cutthroat

87% of 169 decks +78% synergy

Sakura-Tribe Elder

95% of 133 decks +77% synergy

Top Cards

Eternal Witness

93% of 133 decks +74% synergy

Assassin's Trophy

86% of 133 decks +56% synergy

Plaguecrafter

81% of 169 decks +76% synergy

Carrion Feeder

79% of 169 decks +74% synergy

Accursed Marauder

79% of 118 decks +73% synergy

Llanowar Elves

77% of 133 decks +57% synergy

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Cankerbloom

76% of 133 decks +70% synergy

Sun Titan

75% of 12 decks +66% synergy

Braids, Arisen Nightmare

75% of 169 decks +68% synergy

Elvish Mystic

73% of 133 decks +56% synergy

Game Changers

Demonic Tutor

15% of 169 decks -6% synergy

Vampiric Tutor

12% of 169 decks -5% synergy

Ancient Tomb

7% of 169 decks -4% synergy

Bolas's Citadel

5% of 169 decks -3% synergy

Creatures

Flayer of the Hatebound

100% of 3 decks +99% synergy

Glasspool Mimic

83% of 6 decks +80% synergy

Shoreline Looter

75% of 4 decks +74% synergy

Fiend Artisan

72% of 133 decks +70% synergy

Elves of Deep Shadow

72% of 133 decks +62% synergy

Birds of Paradise

72% of 133 decks +45% synergy

Insidious Fungus

69% of 83 decks +67% synergy

Fyndhorn Elves

67% of 133 decks +55% synergy

Body Double

67% of 6 decks +66% synergy

Reveillark

67% of 12 decks +65% synergy

Malcolm, Alluring Scoundrel

67% of 6 decks +65% synergy

Karmic Guide

67% of 12 decks +63% synergy

Spark Double

67% of 6 decks +60% synergy

Disciple of Freyalise

63% of 104 decks +58% synergy

Morbid Opportunist

63% of 169 decks +57% synergy

Warren Soultrader

63% of 119 decks +58% synergy

Demon's Disciple

63% of 169 decks +61% synergy

Mosswood Dreadknight

63% of 131 decks +61% synergy

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Mikaeus, the Unhallowed

61% of 169 decks +58% synergy

Sylvan Safekeeper

59% of 133 decks +56% synergy

Fleshbag Marauder

59% of 169 decks +55% synergy

Yawgmoth, Thran Physician

56% of 169 decks +52% synergy

Merciless Executioner

53% of 169 decks +51% synergy

Phyrexian Delver

52% of 169 decks +51% synergy

Wharf Infiltrator

50% of 6 decks +49% synergy

Mirror Image

50% of 6 decks +49% synergy

River Kelpie

50% of 6 decks +49% synergy

Looter il-Kor

50% of 6 decks +49% synergy

Vohar, Vodalian Desecrator

50% of 6 decks +48% synergy

Phantasmal Image

50% of 6 decks +47% synergy

Dauthi Voidwalker

50% of 169 decks +42% synergy

Scorn-Blade Berserker

47% of 169 decks +47% synergy

Blood Artist

46% of 169 decks +34% synergy

Bartolomé del Presidio

44% of 9 decks +39% synergy

Farhaven Elf

44% of 133 decks +40% synergy

Walking Ballista

43% of 169 decks +40% synergy

Ao, the Dawn Sky

42% of 12 decks +41% synergy

Fiend Hunter

42% of 12 decks +40% synergy

Cruel Celebrant

42% of 12 decks +33% synergy

Elas il-Kor, Sadistic Pilgrim

42% of 12 decks +31% synergy

Wurmcoil Engine

39% of 169 decks +37% synergy

Endurance

38% of 133 decks +36% synergy

Gray Merchant of Asphodel

37% of 169 decks +28% synergy

Cartel Aristocrat

33% of 12 decks +33% synergy

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Abdel Adrian, Gorion's Ward

33% of 12 decks +32% synergy

Luminous Broodmoth

33% of 12 decks +31% synergy

Sidisi, Undead Vizier

31% of 169 decks +30% synergy

Woe Strider

31% of 169 decks +29% synergy

Massacre Wurm

31% of 169 decks +26% synergy

Sutina, Speaker of the Tajuru

30% of 69 decks +30% synergy

Instants

Prismari Command

100% of 3 decks +95% synergy

Rakdos Charm

100% of 3 decks +85% synergy

Chaos Warp

100% of 3 decks +69% synergy

Beast Within

72% of 133 decks +35% synergy

Tear Asunder

64% of 133 decks +58% synergy

Swords to Plowshares

58% of 12 decks -4% synergy

Chord of Calling

53% of 133 decks +47% synergy

Counterspell

50% of 6 decks +8% synergy

Fell the Profane

47% of 119 decks +39% synergy

Anguished Unmaking

42% of 12 decks +17% synergy

Stroke of Midnight

33% of 9 decks +23% synergy

Entomb

27% of 169 decks +20% synergy

Path to Exile

25% of 12 decks -22% synergy

Malakir Rebirth

21% of 169 decks +13% synergy

Dark Ritual

20% of 169 decks -3% synergy

Deadly Dispute

18% of 169 decks +7% synergy

Village Rites

16% of 169 decks +6% synergy

Abrupt Decay

16% of 133 decks +6% synergy

Saw in Half

11% of 169 decks +7% synergy

Corrupted Conviction

11% of 169 decks +6% synergy

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Revitalizing Repast

10% of 103 decks +1% synergy

Deadly Rollick

9% of 169 decks -3% synergy

Worldly Tutor

8% of 133 decks -5% synergy

Noxious Revival

7% of 133 decks +1% synergy

Tragic Slip

6% of 169 decks +2% synergy

Not Dead After All

6% of 157 decks +3% synergy

Heroic Intervention

5% of 133 decks -25% synergy

Sorceries

Reanimate

71% of 169 decks +54% synergy

Toxic Deluge

64% of 169 decks +47% synergy

Farseek

62% of 133 decks +27% synergy

Nature's Lore

61% of 133 decks +29% synergy

Rampant Growth

61% of 133 decks +26% synergy

Three Visits

58% of 133 decks +33% synergy

Natural Order

48% of 133 decks +46% synergy

Damn

42% of 12 decks +25% synergy

Victimize

40% of 169 decks +28% synergy

Agadeem's Awakening

34% of 169 decks +31% synergy

Buried Alive

30% of 169 decks +24% synergy

Culling Ritual

20% of 133 decks +8% synergy

Living Death

18% of 169 decks +13% synergy

Diabolic Intent

18% of 169 decks +10% synergy

Eldritch Evolution

15% of 133 decks +10% synergy

Unmarked Grave

14% of 169 decks +12% synergy

Persist

14% of 169 decks +11% synergy

Feed the Swarm

11% of 169 decks -7% synergy

Rise of the Witch-king

11% of 133 decks +6% synergy

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Life // Death

10% of 133 decks +8% synergy

Green Sun's Zenith

8% of 133 decks +3% synergy

Damnation

8% of 169 decks +0% synergy

8% of 169 decks -2% synergy

Bala Ged Recovery

8% of 133 decks -1% synergy

Cultivate

8% of 133 decks -37% synergy

Final Parting

7% of 169 decks +6% synergy

Dread Return

7% of 169 decks +1% synergy

Read the Bones

6% of 169 decks -1% synergy

Night's Whisper

6% of 169 decks -3% synergy

Rise of the Dark Realms

5% of 169 decks +2% synergy

Jarad's Orders

5% of 133 decks +3% synergy

Finale of Devastation

5% of 133 decks -3% synergy

Utility Artifacts

Ashnod's Altar

72% of 169 decks +64% synergy

Birthing Pod

62% of 133 decks +60% synergy

Altar of Dementia

57% of 169 decks +55% synergy

Phyrexian Altar

49% of 169 decks +45% synergy

Skullclamp

35% of 169 decks +23% synergy

Mithril Coat

32% of 162 decks +28% synergy

Lightning Greaves

27% of 169 decks +2% synergy

Swiftfoot Boots

15% of 169 decks -13% synergy

Jet Medallion

9% of 169 decks +6% synergy

Mind Stone

9% of 169 decks -8% synergy

Wayfarer's Bauble

8% of 169 decks -2% synergy

Bontu's Monument

7% of 169 decks +5% synergy

Whispersilk Cloak

7% of 169 decks +3% synergy

Enchantments

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Goblin Bombardment

100% of 3 decks +94% synergy

Journey to Eternity

64% of 133 decks +61% synergy

Guardian Project

63% of 133 decks +55% synergy

Evolutionary Leap

57% of 133 decks +56% synergy

Birthing Ritual

56% of 103 decks +55% synergy

Grave Pact

56% of 169 decks +51% synergy

Gift of Doom

39% of 169 decks +38% synergy

Animate Dead

37% of 169 decks +27% synergy

Attrition

34% of 169 decks +34% synergy

Gift of Immortality

25% of 12 decks +23% synergy

Pattern of Rebirth

14% of 133 decks +13% synergy

Necromancy

12% of 169 decks +9% synergy

Bastion of Remembrance

12% of 169 decks +6% synergy

Phyrexian Arena

12% of 169 decks -4% synergy

Moldervine Reclamation

10% of 133 decks +1% synergy

Wild Growth

10% of 133 decks -1% synergy

Vampiric Rites

9% of 169 decks +7% synergy

Sylvan Library

9% of 133 decks -2% synergy

Dictate of Erebos

8% of 169 decks +5% synergy

Phyrexian Reclamation

8% of 169 decks +4% synergy

Ripples of Undeath

8% of 119 decks +3% synergy

Awakening Zone

7% of 133 decks +4% synergy

Kaya's Ghostform

7% of 169 decks +3% synergy

Chthonian Nightmare

6% of 126 decks +4% synergy

Insidious Roots

6% of 127 decks -0% synergy

The Meathook Massacre

5% of 169 decks +0% synergy

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Black Market Connections

5% of 169 decks -6% synergy

Planeswalkers

Grist, the Hunger Tide

7% of 133 decks +3% synergy

Utility Lands

High Market

65% of 169 decks +62% synergy

Phyrexian Tower

54% of 169 decks +46% synergy

Cephalid Coliseum

50% of 6 decks +47% synergy

Urborg, Tomb of Yawgmoth

44% of 169 decks +34% synergy

Bojuka Bog

34% of 169 decks +4% synergy

Yavimaya, Cradle of Growth

31% of 169 decks +22% synergy

Shambling Vent

25% of 12 decks +23% synergy

Boseiju, Who Endures

21% of 133 decks +2% synergy

Takenuma, Abandoned Mire

18% of 169 decks +9% synergy

Cabal Coffers

16% of 169 decks +6% synergy

Dryad Arbor

12% of 133 decks +8% synergy

Grim Backwoods

11% of 133 decks +7% synergy

Shifting Woodland

10% of 103 decks +3% synergy

Witch's Cottage

9% of 169 decks +6% synergy

Spymaster's Vault

8% of 119 decks +6% synergy

Castle Locthwain

8% of 169 decks +3% synergy

Reliquary Tower

8% of 169 decks -22% synergy

Hissing Quagmire

7% of 133 decks +6% synergy

Cabal Stronghold

7% of 169 decks +3% synergy

War Room

7% of 169 decks +0% synergy

Rogue's Passage

7% of 169 decks -13% synergy

Barren Moor

6% of 169 decks +2% synergy

Access Tunnel

5% of 169 decks +3% synergy

Command Beacon

5% of 169 decks +1% synergy

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Shizo, Death's Storehouse

5% of 169 decks +1% synergy

Mana Artifacts

Sol Ring

90% of 169 decks +6% synergy

Arcane Signet

38% of 169 decks -34% synergy

Talisman of Hierarchy

33% of 12 decks +8% synergy

Orzhov Signet

25% of 12 decks -2% synergy

Golgari Signet

8% of 133 decks -4% synergy

Talisman of Resilience

7% of 133 decks -6% synergy

Charcoal Diamond

6% of 169 decks +1% synergy

Lands

Sulfurous Mire

100% of 3 decks +98% synergy

Volatile Fjord

100% of 3 decks +98% synergy

Thriving Bluff

100% of 3 decks +98% synergy

Canyon Slough

100% of 3 decks +93% synergy

Thundering Falls

100% of 3 decks +92% synergy

Raucous Theater

100% of 3 decks +90% synergy

Shadowblood Ridge

100% of 3 decks +88% synergy

Cascade Bluffs

100% of 3 decks +87% synergy

Temple of Malice

100% of 3 decks +86% synergy

Temple of Epiphany

100% of 3 decks +82% synergy

Indatha Triome

100% of 5 decks +70% synergy

Crumbling Necropolis

100% of 3 decks +69% synergy

Dragonskull Summit

100% of 3 decks +68% synergy

Woodland Cemetery

84% of 133 decks +54% synergy

Command Tower

82% of 169 decks +7% synergy

Bountiful Promenade

80% of 5 decks +56% synergy

Temple Garden

80% of 5 decks +40% synergy

Llanowar Wastes

77% of 133 decks +51% synergy

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Tainted Wood

73% of 133 decks +59% synergy

Undergrowth Stadium

73% of 133 decks +47% synergy

Overgrown Tomb

72% of 133 decks +31% synergy

Darkwater Catacombs

67% of 6 decks +52% synergy

Drowned Catacomb

67% of 6 decks +40% synergy

Godless Shrine

67% of 12 decks +26% synergy

Twilight Mire

65% of 133 decks +55% synergy

Necroblossom Snarl

65% of 133 decks +53% synergy

Deathcap Glade

63% of 133 decks +50% synergy

Murmuring Bosk

60% of 5 decks +52% synergy

Underground Mortuary

59% of 127 decks +46% synergy

Isolated Chapel

58% of 12 decks +28% synergy

Nurturing Peatland

52% of 133 decks +46% synergy

Blooming Marsh

51% of 133 decks +47% synergy

Darkbore Pathway

51% of 133 decks +43% synergy

Ice Tunnel

50% of 6 decks +48% synergy

Thriving Isle

50% of 6 decks +47% synergy

Fetid Pools

50% of 6 decks +44% synergy

Undercity Sewers

50% of 6 decks +39% synergy

Temple of Deceit

50% of 6 decks +34% synergy

Caves of Koilos

50% of 12 decks +21% synergy

Verdant Catacombs

43% of 169 decks +31% synergy

Brightclimb Pathway

42% of 12 decks +32% synergy

Fetid Heath

42% of 12 decks +31% synergy

Vault of Champions

42% of 12 decks +16% synergy

Wastewood Verge

38% of 39 decks +32% synergy

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Shattered Sanctum

33% of 12 decks +20% synergy

Tainted Field

25% of 12 decks +11% synergy

Temple of Silence

25% of 12 decks +7% synergy

Golgari Rot Farm

23% of 133 decks +5% synergy

Temple of Malady

19% of 133 decks +2% synergy

Exotic Orchard

17% of 169 decks -20% synergy