Blightbeetle + Bartolomé del Presidio + Blim, Comedic Genius

Blightbeetle

Bartolomé del Presidio

Blim, Comedic Genius

How it works

1. Donate Blightbeetle to an opponent
2. Activate Bartolomé del Presidio 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 Bartolomé del Presidio ability.
5. Repeat from step 2.

This cunning loop turns a seemingly defensive insect into the engine for infinite power. By using Blim, Comedic Genius to donate Blightbeetle to your opponent, you weaponize its static ability: because your opponent now controls Blightbeetle, its rule that prevents creatures they control from receiving +1/+1 counters neutralizes the safety valve on your undying creatures. This allows you to repeatedly sacrifice an undying creature to Bartolomé del Presidio, pump Bartolomé's size indefinitely, and trigger endless leaves-the-battlefield, entry, and death effects without the creature ever accumulating the counters that would normally stop the loop.