Progenitor Mimic + Temporal Manipulation + Possessed Skaab

Progenitor Mimic

Temporal Manipulation

Possessed Skaab

How it works

1. Cast Temporal Manipulation 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 Temporal Manipulation from your graveyard to your hand.
4. Repeat.

This elegant engine spins up an unyielding temporal loop by leveraging Progenitor Mimic as a tireless factory of recursion. With Temporal Manipulation already resting in your graveyard after its initial cast, the Mimic’s upkeep trigger brings forth a fresh token copy of Possessed Skaab. The newly arrived token's triggered ability immediately plucks Temporal Manipulation right back out of your graveyard and into your hand, ready to be cast anew for endless extra turns.