Yuna, Hope of Spira + Second Chance + Hex Parasite

Yuna, Hope of Spira

Second Chance

Hex Parasite

How it works

1. At the beginning of your upkeep, Second Chance triggers, causing you to sacrifice it and causing you to take an extra turn after this one.
2. At the beginning of your end step, Yuna triggers, returning Second Chance from your graveyard to the battlefield with a finality counter on it.
3. Activate Hex Parasite by paying 1B/P, removing the finality counter from Second Chance.
4. Repeat each turn.