Metamorphosis Fanatic + Prowling Geistcatcher + Shilgengar, Sire of Famine

Metamorphosis Fanatic

Prowling Geistcatcher

Shilgengar, Sire of Famine

How it works

1. Activate Shilgengar by sacrificing Metamorphosis Fanatic.
2. When Metamorphosis Fanatic dies, Prowling Geistcatcher's first ability triggers, exiling Metamorphosis Fanatic from your graveyard.
3. Resolve the Shilgengar ability.
4. Activate Shilgengar by sacrificing Prowling Geistcatcher.
5. When Prowling Geistcatcher dies, its second ability triggers, returning Metamorphosis Fanatic from exile to the battlefield.
6. When Metamorphosis Fanatic enters the battlefield, it triggers, returning Prowling Geistcatcher from your graveyard to the battlefield.
7. Resolve the Shilgengar ability.
8. Repeat.