Saffi Eriksdotter, General Leo Cristophe, and Blasting Station

Prerequisites

• Saffi Eriksdotter on the battlefield
• General Leo Cristophe on the battlefield
• Blasting Station on the battlefield

Steps

1. Activate Saffi by sacrificing it, targeting General Leo Cristophe
2. Activate Blasting Station by tapping it and sacrificing General Leo Cristophe
3. When General Leo Cristophe dies, Saffi triggers, returning General Leo Cristophe from your graveyard to the battlefield
4. When General Leo Cristophe enters the battlefield, it and Blasting Station trigger
5. Resolve the Blasting Station trigger, untapping it
6. Resolve the General Leo Cristophe trigger, returning Saffi from your graveyard to the battlefield
7. When Saffi enters the battlefield, Blasting Station triggers, untapping Blasting Station
8. Resolve the Blasting Station ability from step 2
9. Repeat

Results

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