Blightbeetle, Blasting Station, and Iroh, Tea Master

Prerequisites

• Blightbeetle on the battlefield
• Blasting Station on the battlefield
• Iroh, Tea Master on the battlefield

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage