Infinite LTB, Infinite ETB, Infinite sacrifice triggers, Infinite death triggers, Infinite +1/+1 counters on a creature
Donate Blightbeetle to an opponent
Activate Bloodflow Connoisseur by sacrificing the undying creature.
When the undying creature dies, its undying ability triggers, returning itself from your graveyard to the battlefield without a +1/+1 counter on it due to Blightbeetle.
Resolve the Bloodflow Connoisseur ability.
Repeat from step 2.
Component Cards
How It Works
Donate Blightbeetle to an opponent
Activate Bloodflow Connoisseur by sacrificing the undying creature.
When the undying creature dies, its undying ability triggers, returning itself from your graveyard to the battlefield without a +1/+1 counter on it due to Blightbeetle.
Resolve the Bloodflow Connoisseur ability.
Repeat from step 2.