Blightbeetle + Bloodflow Connoisseur + Blim, Comedic Genius

Blightbeetle

Bloodflow Connoisseur

Blim, Comedic Genius

How it works

1. Donate Blightbeetle to an opponent
2. Activate Bloodflow Connoisseur by sacrificing the undying creature.
3. 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.
4. Resolve the Bloodflow Connoisseur ability.
5. Repeat from step 2.

This clever loop relies on the static text of Blightbeetle, which we donate to an opponent via Blim, Comedic Genius to shut down their creature's growth. With that restriction in place, sacrificing a creature to Bloodflow Connoisseur normally sends it to the graveyard, but if that creature has undying, it tries to return with a counter—which Blightbeetle's passive ability immediately prevents. Because no counter is placed, the creature returns clean, allowing you to feed it back into Bloodflow Connoisseur infinitely for endless sacrifice, death, and entry triggers.