Metamorphosis Fanatic, Blasting Station, and Fiend Hunter

Prerequisites

• Metamorphosis Fanatic in hand
• Blasting Station on the battlefield
• Fiend Hunter in the graveyard
• available

Steps

1. Cast Metamorphosis Fanatic by paying
2. When Metamorphosis Fanatic enters, it and Blasting Station trigger
3. Resolve the Blasting Station trigger, untapping it
4. Resolve the Metamorphosis Fanatic trigger, returning Fiend Hunter from your graveyard to the battlefield When Fiend Hunter enters, it and Blasting Station trigger
5. Resolve the Blasting Station trigger, untapping it
6. Resolve the Fiend Hunter trigger, exiling Metamorphosis Fanatic
7. Activate Blasting Station by tapping it and sacrificing Fiend Hunter
8. When Fiend Hunter dies, it triggers, returning Metamorphosis Fanatic from exile to the battlefield
9. Repeat from step 2
10. Resolve all Blasting Station abilities

Results

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