Cavalier of Night | Activated Sleeper | Bloodflow Connoisseur

Cards

Activate
Bloodflow Connoisseur 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
Bloodflow Connoisseur ability from step 1.
Activate
Bloodflow Connoisseur 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
Bloodflow Connoisseur ability from step 5.
Repeat from step 5.