Blasting Station + Fiend Hunter + Karmic Guide

Blasting Station

Fiend Hunter

Karmic Guide

How it works

1. Cast Fiend Hunter by paying its mana cost.
2. When Fiend Hunter enters, its first ability and Blasting Station trigger.
3. Resolve the Fiend Hunter trigger, exiling Karmic Guide.
4. Resolve the Blasting Station trigger, untapping it.
5. Activate Blasting Station by tapping it and sacrificing Fiend Hunter.
6. When Fiend Hunter dies, its second ability triggers, returning Karmic Guide from exile to the battlefield.
7. When Karmic Guide enters, it and Blasting Station trigger.
8. Resolve the Blasting Station trigger, untapping it.
9. Resolve the Karmic Guide trigger, returning Fiend Hunter from your graveyard to the battlefield.
10. Repeat steps 2 through 4 one additional time.
11. Resolve the Blasting Station ability from step 5.
12. Repeat from step 5.