Blightbeetle + Blasting Station + Stiltzkin, Moogle Merchant

Blightbeetle

Blasting Station

Stiltzkin, Moogle Merchant

How it works

1. Donate Blightbeetle to an opponent
2. Activate Blasting Station by tapping it and 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. When the undying creature enters, Blasting Station triggers, untapping Blasting Station.
5. Resolve the Blasting Station ability from step 2.
6. Repeat from step 2.

This fascinating loop relies on forcing your opponent to take ownership of Blightbeetle using Stiltzkin, Moogle Merchant, turning its passive prevention of +1/+1 counters into a devastating tool against them. Normally, an undying creature would return with a counter and stop looping, but Blightbeetle's static ability ensures that counter is never placed. This allows you to endlessly sacrifice and recur that creature to trigger Blasting Station's untap ability, converting the seamless cycle into infinite damage and death triggers.