Progenitor Mimic + Izzet Chronarch + Walk the Aeons

Progenitor Mimic

Izzet Chronarch

Walk the Aeons

How it works

1. Cast Walk the Aeons 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 Izzet Chronarch.
3. When the token Izzet Chronarch enters the battlefield, it triggers itself, returning Walk the Aeons from your graveyard to your hand.
4. Repeat.