Cavalier of Night + Mirror Image + Yahenni, Undying Partisan

Cavalier of Night
Mirror Image
Yahenni, Undying Partisan

Requires
Cavalier of Night must be on the battlefield. Mirror Image must be on the battlefield (as a copy of Cavalier of Night). Yahenni, Undying Partisan must be on the battlefield.
Steps
  1. Activate Yahenni by sacrificing Mirror Image.
  2. When Mirror Image dies, its last ability from Cavalier of Night triggers, returning itself from your graveyard to the battlefield as a copy of Cavalier of Night.
  3. When Mirror Image enters the battlefield, its first triggered ability from Cavalier of Night triggers; choose not to sacrifice a creature.
  4. Resolve the Yahenni ability from step 1.
  5. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Sefris of the Hidden Ways
0.03% of 8722 decks 3 decks
Marchesa, the Black Rose
0.02% of 9321 decks 2 decks
Ludevic, Necro-Alchemist // Tormod, the Desecrator
3.28% of 61 decks 2 decks
The Ever-Changing 'Dane
0.13% of 756 decks 1 decks
High Synergy Cards
Goblin Bombardment
100% of 4 decks +94% synergy
Spark Double
88% of 8 decks +80% synergy
Viscera Seer
88% of 8 decks +78% synergy
Body Launderer
75% of 8 decks +74% synergy
Woe Strider
75% of 8 decks +73% synergy
Phantasmal Image
75% of 8 decks +71% synergy
Spawning Pit
50% of 8 decks +50% synergy
Activated Sleeper
50% of 8 decks +50% synergy
River Kelpie
50% of 8 decks +49% synergy
Body Double
50% of 8 decks +49% synergy
Top Cards
Glasspool Mimic
75% of 8 decks +72% synergy
Altar of Dementia
50% of 8 decks +47% synergy
Junji, the Midnight Sky
50% of 8 decks +47% synergy
Carrion Feeder
50% of 8 decks +45% synergy
Ashnod's Altar
50% of 8 decks +42% synergy
Creatures
Gev, Scaled Scorch
100% of 2 decks +98% synergy
Rakdos, the Muscle
100% of 2 decks +98% synergy
Malcolm, Alluring Scoundrel
100% of 3 decks +97% synergy
Shoreline Looter
100% of 2 decks +97% synergy
Likeness Looter
100% of 3 decks +96% synergy
Warren Soultrader
100% of 2 decks +93% synergy
Agate Instigator
100% of 2 decks +90% synergy
Radiant Solar
75% of 4 decks +74% synergy
Flayer of the Hatebound
75% of 4 decks +74% synergy
Reveillark
75% of 4 decks +73% synergy
Karmic Guide
75% of 4 decks +70% synergy
Mirror-Style Master
50% of 4 decks +50% synergy
Eagles of the North
50% of 2 decks +49% synergy
Hama Pashar, Ruin Seeker
50% of 4 decks +49% synergy
Ashen Rider
50% of 4 decks +49% synergy
Immersturm Predator
50% of 4 decks +49% synergy
Murderous Redcap
50% of 4 decks +49% synergy
White Plume Adventurer
50% of 4 decks +48% synergy
Angel of the Ruins
50% of 4 decks +47% synergy
Juri, Master of the Revue
50% of 4 decks +46% synergy
Imperial Recruiter
50% of 4 decks +44% synergy
Sun Titan
50% of 4 decks +39% synergy
Dockside Extortionist
50% of 4 decks +37% synergy
Gixian Puppeteer
38% of 8 decks +36% synergy
Disciple of Bolas
38% of 8 decks +35% synergy
Pitiless Plunderer
38% of 8 decks +30% synergy
Blood Artist
38% of 8 decks +26% synergy
Preston, the Vanisher
33% of 3 decks +32% synergy
Jirina, Dauntless General
33% of 3 decks +32% synergy
Boromir, Warden of the Tower
33% of 3 decks +28% synergy
Scorn-Blade Berserker
29% of 7 decks +28% synergy
Rona, Herald of Invasion
29% of 7 decks +26% synergy
Stormbound Geist
25% of 8 decks +25% synergy
Helium Squirter
25% of 8 decks +25% synergy
Novijen Sages
25% of 8 decks +25% synergy
Lingering Tormentor
25% of 8 decks +25% synergy
Wingrattle Scarecrow
25% of 8 decks +25% synergy
Vesperlark
25% of 4 decks +25% synergy
Thought Sponge
25% of 8 decks +25% synergy
Cytoplast Manipulator
25% of 8 decks +25% synergy
Lumbering Battlement
25% of 4 decks +25% synergy
Lesser Masticore
25% of 8 decks +25% synergy
Geralf's Mindcrusher
25% of 8 decks +25% synergy
Hero of the Dunes
25% of 4 decks +25% synergy
Skyclave Shadowcat
25% of 8 decks +25% synergy
Vigean Graftmage
25% of 8 decks +25% synergy
Icewind Stalwart
25% of 4 decks +25% synergy
Extraction Specialist
25% of 4 decks +25% synergy
Moorland Rescuer
25% of 4 decks +25% synergy
Iron Apprentice
25% of 8 decks +25% synergy
Instants
First Day of Class
50% of 4 decks +50% synergy
Prismari Command
50% of 4 decks +45% synergy
Rakdos Charm
50% of 4 decks +36% synergy
Void Rend
50% of 4 decks +35% synergy
Despark
50% of 4 decks +34% synergy
Chaos Warp
50% of 4 decks +18% synergy
Makeshift Mannequin
25% of 8 decks +25% synergy
Wake the Dead
25% of 8 decks +25% synergy
Lethal Scheme
25% of 8 decks +24% synergy
Faithful Mending
25% of 4 decks +22% synergy
Inkshield
25% of 4 decks +20% synergy
Utter End
25% of 4 decks +18% synergy
Fracture
25% of 4 decks +18% synergy
Entomb
25% of 8 decks +18% synergy
Frantic Search
25% of 8 decks +13% synergy
Teferi's Protection
25% of 4 decks +5% synergy
Anguished Unmaking
25% of 4 decks +1% synergy
Generous Gift
25% of 4 decks -1% synergy
Counterspell
25% of 8 decks -18% synergy
Swords to Plowshares
25% of 4 decks -38% synergy
Mask of the Mimic
12% of 8 decks +12% synergy
Corpse Dance
12% of 8 decks +12% synergy
Sacrifice
12% of 8 decks +12% synergy
Tainted Indulgence
12% of 8 decks +11% synergy
Thirst for Knowledge
12% of 8 decks +11% synergy
Intuition
12% of 8 decks +11% synergy
Stubborn Denial
12% of 8 decks +11% synergy
Baleful Mastery
12% of 8 decks +10% synergy
Culling the Weak
12% of 8 decks +9% synergy
Ghostly Flicker
12% of 8 decks +8% synergy
Drown in the Loch
12% of 8 decks +6% synergy
Reality Shift
12% of 8 decks +3% synergy
Force of Negation
12% of 8 decks +3% synergy
Village Rites
12% of 8 decks +3% synergy
Deadly Rollick
12% of 8 decks +2% synergy
Force of Will
12% of 8 decks +1% synergy
Swan Song
12% of 8 decks -4% synergy
An Offer You Can't Refuse
12% of 8 decks -8% synergy
Negate
12% of 8 decks -10% synergy
Sorceries
Ill-Timed Explosion
50% of 2 decks +49% synergy
Damn
50% of 4 decks +33% synergy
Victimize
38% of 8 decks +26% synergy
Reanimate
38% of 8 decks +22% synergy
Hallowed Respite
25% of 4 decks +25% synergy
Stitch Together
25% of 8 decks +23% synergy
Agadeem's Awakening
25% of 8 decks +21% synergy
Living Death
25% of 8 decks +20% synergy
Buried Alive
25% of 8 decks +19% synergy
Gitaxian Probe
25% of 8 decks +19% synergy
Vindicate
25% of 4 decks +18% synergy
Faithless Looting
25% of 4 decks +8% synergy
Bitter Ordeal
12% of 8 decks +12% synergy
Command the Dreadhorde
12% of 8 decks +12% synergy
Unmarked Grave
12% of 8 decks +10% synergy
Diabolic Intent
12% of 8 decks +4% synergy
Demonic Tutor
12% of 8 decks -10% synergy
Utility Artifacts
Brass's Tunnel-Grinder
50% of 2 decks +47% synergy
The Everflowing Well
33% of 3 decks +32% synergy
Collector's Vault
33% of 3 decks +32% synergy
Deathrender
25% of 8 decks +25% synergy
Immovable Rod
25% of 4 decks +25% synergy
Scroll of Fate
25% of 8 decks +25% synergy
The Ozolith
25% of 8 decks +22% synergy
Phyrexian Altar
25% of 8 decks +21% synergy
Skullclamp
25% of 8 decks +13% synergy
Desecrated Tomb
12% of 8 decks +12% synergy
Strionic Resonator
12% of 8 decks +9% synergy
Enchantments
Vault 21: House Gambit
100% of 2 decks +100% synergy
Chthonian Nightmare
100% of 2 decks +97% synergy
Fanatical Devotion
50% of 4 decks +49% synergy
Uncivil Unrest
50% of 4 decks +48% synergy
Sneak Attack
50% of 4 decks +48% synergy
Scavenger's Talent
50% of 2 decks +47% synergy
Necromancy
38% of 8 decks +34% synergy
Animate Dead
38% of 8 decks +28% synergy
Thran Vigil
25% of 8 decks +24% synergy
Unspeakable Symbol
25% of 8 decks +24% synergy
Industrial Advancement
25% of 4 decks +24% synergy
Attrition
25% of 8 decks +24% synergy
Life Insurance
25% of 4 decks +23% synergy
Gift of Immortality
25% of 4 decks +23% synergy
Dictate of Erebos
25% of 8 decks +21% synergy
Grave Pact
25% of 8 decks +21% synergy
Warstorm Surge
25% of 4 decks +20% synergy
Hard Cover
12% of 8 decks +12% synergy
Shadows of the Past
12% of 8 decks +12% synergy
Gift of Doom
12% of 8 decks +12% synergy
Monastery Siege
12% of 8 decks +12% synergy
Heartless Summoning
12% of 8 decks +12% synergy
Tortured Existence
12% of 8 decks +11% synergy
Dance of the Dead
12% of 8 decks +11% synergy
Rooftop Storm
12% of 8 decks +11% synergy
Kaya's Ghostform
12% of 8 decks +8% synergy
The Meathook Massacre
12% of 8 decks +7% synergy
Mystic Remora
12% of 8 decks -5% synergy
Planeswalkers
Aminatou, the Fateshifter
50% of 4 decks +47% synergy
Teferi, Master of Time
12% of 8 decks +10% synergy
Utility Lands
Spymaster's Vault
100% of 2 decks +96% synergy
Forge of Heroes
25% of 8 decks +24% synergy
Nesting Grounds
25% of 8 decks +24% synergy
Tyrite Sanctum
25% of 8 decks +23% synergy
Field of Ruin
25% of 8 decks +23% synergy
Ghost Quarter
25% of 8 decks +23% synergy
Cephalid Coliseum
25% of 8 decks +22% synergy
High Market
25% of 8 decks +22% synergy
Geier Reach Sanitarium
25% of 8 decks +22% synergy
Ancient Tomb
25% of 8 decks +14% synergy
Takenuma, Abandoned Mire
25% of 8 decks +14% synergy
Bojuka Bog
25% of 8 decks -5% synergy
Volrath's Stronghold
12% of 8 decks +11% synergy
Mana Artifacts
Sol Ring
62% of 8 decks -22% synergy
Arcane Signet
50% of 8 decks -22% synergy
Talisman of Progress
25% of 4 decks +2% synergy
Talisman of Hierarchy
25% of 4 decks +0% synergy
Orzhov Signet
25% of 4 decks -2% synergy
Dimir Signet
25% of 8 decks -5% synergy
Talisman of Dominance
25% of 8 decks -6% synergy
Sarevok's Tome
12% of 8 decks +12% synergy
Relic of Legends
12% of 8 decks +10% synergy
Lands
Thundering Falls
100% of 2 decks +89% synergy
Raucous Theater
100% of 2 decks +87% synergy
Undercity Sewers
100% of 2 decks +86% synergy
Crumbling Necropolis
100% of 4 decks +69% synergy
Exotic Orchard
88% of 8 decks +52% synergy
Command Tower
88% of 8 decks +14% synergy
Darkwater Catacombs
62% of 8 decks +48% synergy
Sulfurous Mire
50% of 4 decks +48% synergy
Thriving Bluff
50% of 4 decks +48% synergy
Volatile Fjord
50% of 4 decks +48% synergy
Canyon Slough
50% of 4 decks +44% synergy
Shadowblood Ridge
50% of 4 decks +38% synergy
Cascade Bluffs
50% of 4 decks +38% synergy
Temple of Malice
50% of 4 decks +36% synergy
Rakdos Carnarium
50% of 4 decks +35% synergy
Izzet Boilerworks
50% of 4 decks +34% synergy
Temple of Epiphany
50% of 4 decks +32% synergy
Dragonskull Summit
50% of 4 decks +19% synergy
Prairie Stream
50% of 4 decks +16% synergy
Blood Crypt
50% of 4 decks +11% synergy
Steam Vents
50% of 4 decks +11% synergy
Godless Shrine
50% of 4 decks +9% synergy
Watery Grave
50% of 8 decks +9% synergy
Hallowed Fountain
50% of 4 decks +9% synergy
Ice Tunnel
38% of 8 decks +35% synergy
Fetid Pools
38% of 8 decks +32% synergy
Drowned Catacomb
38% of 8 decks +12% synergy
Guildmages' Forum
25% of 8 decks +25% synergy
Thriving Moor
25% of 8 decks +23% synergy
Thriving Isle
25% of 8 decks +22% synergy
Opal Palace
25% of 8 decks +22% synergy
Demolition Field
25% of 8 decks +22% synergy
Snowfield Sinkhole
25% of 4 decks +22% synergy
Sunlit Marsh
25% of 4 decks +20% synergy
Irrigated Farmland
25% of 4 decks +17% synergy
Wooded Foothills
25% of 8 decks +15% synergy
Bloodstained Mire
25% of 8 decks +15% synergy
Flooded Strand
25% of 8 decks +14% synergy
Arid Mesa
25% of 8 decks +14% synergy
Scalding Tarn
25% of 8 decks +14% synergy
Polluted Delta
25% of 8 decks +14% synergy
Marsh Flats
25% of 8 decks +14% synergy
Verdant Catacombs
25% of 8 decks +14% synergy
Misty Rainforest
25% of 8 decks +13% synergy
Shineshadow Snarl
25% of 4 decks +13% synergy
Shattered Sanctum
25% of 4 decks +12% synergy
Port Town
25% of 4 decks +9% synergy
Deserted Beach
25% of 4 decks +9% synergy
Temple of Deceit
25% of 8 decks +9% synergy
Dimir Aqueduct
25% of 8 decks +8% synergy