Metamorphosis Fanatic, Blasting Station, and Lagrella, the Magpie

Prerequisites

• Metamorphosis Fanatic in hand
• Blasting Station on the battlefield
• Lagrella, the Magpie 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 Lagrella from your graveyard to the battlefield When Lagrella enters, it and Blasting Station trigger
5. Resolve the Blasting Station trigger, untapping it
6. Resolve the Lagrella trigger, exiling Metamorphosis Fanatic until Lagrella leaves the battlefield
7. Activate Blasting Station by tapping it and sacrificing Lagrella
8. When Lagrella leaves the battlefield, Metamorphosis Fanatic is returned 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