Cavalier of Night + Activated Sleeper + Bloodflow Connoisseur

Cavalier of Night
Activated Sleeper
Bloodflow Connoisseur

Requires
Cavalier of Night must be on the battlefield. Activated Sleeper must be in the graveyard. Bloodflow Connoisseur must be on the battlefield.
Steps
  1. Activate Bloodflow Connoisseur 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 Bloodflow Connoisseur ability from step 1.
  5. Activate Bloodflow Connoisseur 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 Bloodflow Connoisseur ability from step 5.
  9. Repeat from step 5.
Results
Infinite +1/+1 counters on Bloodflow Connoisseur. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Sidar Kondo of Jamuraa // Tormod, the Desecrator
0.64% of 156 decks 1 decks
Meren of Clan Nel Toth
0.01% of 14168 decks 1 decks
Creatures
Magnanimous Magistrate
100% of 1 decks +100% synergy
Shepherd of the Cosmos
100% of 1 decks +100% synergy
Icewind Stalwart
100% of 1 decks +100% synergy
Renegade Rallier
100% of 1 decks +100% synergy
Abyssal Gorestalker
100% of 1 decks +100% synergy
Cartel Aristocrat
100% of 1 decks +100% synergy
Saffi Eriksdotter
100% of 1 decks +100% synergy
Abdel Adrian, Gorion's Ward
100% of 1 decks +100% synergy
Fiend Hunter
100% of 1 decks +99% synergy
Lurrus of the Dream-Den
100% of 1 decks +99% synergy
Reveillark
100% of 1 decks +99% synergy
Restoration Angel
100% of 1 decks +99% synergy
Felidar Guardian
100% of 1 decks +99% synergy
Wall of Omens
100% of 1 decks +99% synergy
Yahenni, Undying Partisan
100% of 2 decks +98% synergy
Spirited Companion
100% of 1 decks +98% synergy
Karmic Guide
100% of 1 decks +98% synergy
Welcoming Vampire
100% of 1 decks +98% synergy
Carrion Feeder
100% of 2 decks +97% synergy
Pitiless Plunderer
100% of 2 decks +96% synergy
Sun Titan
100% of 1 decks +95% synergy
Viscera Seer
100% of 2 decks +95% synergy
Mirkwood Bats
100% of 1 decks +93% synergy
Sakura-Tribe Elder
100% of 2 decks +91% synergy
Solemn Simulacrum
100% of 2 decks +86% synergy
Falkenrath Torturer
50% of 2 decks +50% synergy
Dross Hopper
50% of 2 decks +50% synergy
Devouring Swarm
50% of 2 decks +50% synergy
Diligent Farmhand
50% of 2 decks +50% synergy
Bloodthrone Vampire
50% of 2 decks +50% synergy
Savra, Queen of the Golgari
50% of 2 decks +50% synergy
Body Launderer
50% of 2 decks +50% synergy
Izoni, Thousand-Eyed
50% of 2 decks +50% synergy
Dusk Legion Zealot
50% of 2 decks +49% synergy
Bloodsoaked Champion
50% of 2 decks +49% synergy
Dina, Soul Steeper
50% of 2 decks +49% synergy
Regal Force
50% of 2 decks +49% synergy
Vindictive Vampire
50% of 2 decks +49% synergy
Wall of Blossoms
50% of 2 decks +49% synergy
Protean Hulk
50% of 2 decks +49% synergy
Elvish Visionary
50% of 2 decks +49% synergy
Bloodghast
50% of 2 decks +49% synergy
Falkenrath Noble
50% of 2 decks +49% synergy
Manglehorn
50% of 2 decks +49% synergy
Pawn of Ulamog
50% of 2 decks +49% synergy
Essence Warden
50% of 2 decks +49% synergy
Spore Frog
50% of 2 decks +49% synergy
Woe Strider
50% of 2 decks +49% synergy
Noxious Gearhulk
50% of 2 decks +48% synergy
Kogla, the Titan Ape
50% of 2 decks +48% synergy
Instants
Infuse with Vitality
50% of 2 decks +50% synergy
Plumb the Forbidden
50% of 2 decks +48% synergy
Deadly Dispute
50% of 2 decks +44% synergy
Dark Ritual
50% of 2 decks +39% synergy
Sorceries
Damnable Pact
50% of 2 decks +49% synergy
Persist
50% of 2 decks +49% synergy
Painful Truths
50% of 2 decks +48% synergy
Dread Return
50% of 2 decks +47% synergy
Living Death
50% of 2 decks +47% synergy
Read the Bones
50% of 2 decks +46% synergy
Night's Whisper
50% of 2 decks +45% synergy
Sign in Blood
50% of 2 decks +45% synergy
Victimize
50% of 2 decks +44% synergy
Reanimate
50% of 2 decks +42% synergy
Utility Artifacts
Ashnod's Altar
100% of 2 decks +92% synergy
Spawning Pit
50% of 2 decks +50% synergy
Blasting Station
50% of 2 decks +49% synergy
Nim Deathmantle
50% of 2 decks +49% synergy
Birthing Pod
50% of 2 decks +49% synergy
Altar of Dementia
50% of 2 decks +47% synergy
Phyrexian Altar
50% of 2 decks +46% synergy
Wayfarer's Bauble
50% of 2 decks +39% synergy
Enchantments
Angelic Renewal
100% of 1 decks +100% synergy
Fanatical Devotion
100% of 1 decks +100% synergy
Insidious Roots
100% of 1 decks +98% synergy
Elven Chorus
100% of 1 decks +98% synergy
Trudge Garden
50% of 2 decks +50% synergy
Fecundity
50% of 2 decks +50% synergy
Blight Mound
50% of 2 decks +50% synergy
Dance of the Dead
50% of 2 decks +49% synergy
Greed
50% of 2 decks +49% synergy
Kaya's Ghostform
50% of 2 decks +48% synergy
Utopia Sprawl
50% of 2 decks +47% synergy
Animate Dead
50% of 2 decks +45% synergy
Wild Growth
50% of 2 decks +45% synergy
Utility Lands
Yavimaya, Cradle of Growth
50% of 2 decks +41% synergy
Urborg, Tomb of Yawgmoth
50% of 2 decks +40% synergy
Mana Artifacts
Selesnya Signet
100% of 1 decks +98% synergy
Marble Diamond
100% of 1 decks +98% synergy
Talisman of Hierarchy
100% of 1 decks +94% synergy
Orzhov Signet
100% of 1 decks +94% synergy
Sol Ring
100% of 2 decks +16% synergy
Star Compass
50% of 2 decks +49% synergy
Coldsteel Heart
50% of 2 decks +49% synergy
Golgari Signet
50% of 2 decks +47% synergy
Mind Stone
50% of 2 decks +32% synergy
Fellwar Stone
50% of 2 decks +29% synergy
Arcane Signet
50% of 2 decks -21% synergy
Lands
Murmuring Bosk
100% of 1 decks +99% synergy
Branchloft Pathway
100% of 1 decks +98% synergy
Escape Tunnel
100% of 1 decks +98% synergy
Brightclimb Pathway
100% of 1 decks +98% synergy
Fetid Heath
100% of 1 decks +98% synergy
Sandsteppe Citadel
100% of 1 decks +97% synergy
Temple of Plenty
100% of 1 decks +97% synergy
Shattered Sanctum
100% of 1 decks +97% synergy
Indatha Triome
100% of 1 decks +97% synergy
Orzhov Basilica
100% of 1 decks +96% synergy
Temple of Silence
100% of 1 decks +96% synergy
Sunpetal Grove
100% of 1 decks +95% synergy
Bountiful Promenade
100% of 1 decks +95% synergy
Isolated Chapel
100% of 1 decks +94% synergy
Canopy Vista
100% of 1 decks +92% synergy
Myriad Landscape
100% of 2 decks +80% synergy
Darkbore Pathway
50% of 2 decks +48% synergy
Twilight Mire
50% of 2 decks +48% synergy
Temple of Malady
50% of 2 decks +47% synergy
Undergrowth Stadium
50% of 2 decks +44% synergy
Woodland Cemetery
50% of 2 decks +44% synergy
Terramorphic Expanse
50% of 2 decks +34% synergy
Path of Ancestry
50% of 2 decks +29% synergy
Evolving Wilds
50% of 2 decks +29% synergy
Exotic Orchard
50% of 2 decks +15% synergy
Command Tower
50% of 2 decks -24% synergy