Fiend Hunter + Metamorphosis Fanatic + Phantom Train

Fiend Hunter

Metamorphosis Fanatic

Phantom Train

How it works

1. Cast Fiend Hunter by paying its mana cost.
2. When Fiend Hunter enters, its first ability triggers, exiling Metamorphosis Fanatic.
3. Activate Phantom Train by sacrificing Fiend Hunter.
4. When Fiend Hunter dies, its second ability triggers, returning Metamorphosis Fanatic from exile to the battlefield.
5. When Metamorphosis Fanatic enters, it triggers, returning Fiend Hunter from your graveyard to the battlefield.
6. When Fiend Hunter enters, its first ability triggers, exiling Metamorphosis Fanatic.
7. Resolve the Phantom Train ability.
8. Repeat from step 3.

This ingenious loop uses the classic Fiend Hunter exile trick to cycle your graveyard and battlefield endlessly, while Phantom Train acts as the sacrifice outlet that keeps the engine moving. The beauty of the chain lies in Metamorphosis Fanatic, whose enters-the-battlefield ability reaches right back into the graveyard to pull Fiend Hunter back into play the moment it hits the bin. As you sacrifice Fiend Hunter to fuel Phantom Train, you not only trigger the Hunter's return clause to fetch the Fanatic back from exile, but you also continuously pile infinite +1/+1 counters onto the Train while generating boundless death and sacrifice triggers.