Progenitor Mimic + Capture of Jingzhou + Possessed Skaab

Progenitor Mimic

Capture of Jingzhou

Possessed Skaab

How it works

1. Cast Capture of Jingzhou by paying its mana cost, taking an extra turn after this one.
2. At the beginning of your next upkeep, Progenitor Mimic triggers, creating a token copy of Possessed Skaab.
3. When the token Possessed Skaab enters the battlefield, it triggers itself, returning Capture of Jingzhou from your graveyard to your hand.
4. Repeat.