Blasting Station, and Good-Fortune Unicorn

Prerequisites

• Blasting Station on the battlefield
• Good-Fortune Unicorn on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing the persist creature
2. When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When the persist creature enters, Blasting Station and Good-Fortune Unicorn trigger
4. Resolve the Good-Fortune Unicorn trigger, putting a +1/+1 counter on the persist creature
5. Resolve the Blasting Station trigger, untapping it
6. Resolve the Blasting Station ability from step 1
7. Repeat

Results

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