Progenitor Mimic + Scholar of the Ages + Time Stretch

GU identity

Commander legal

The 3 combo pieces

What must be in place

Enough mana available to cast the extra turn spell each turn.
Progenitor Mimic is a copy of Scholar of the Ages.

How to execute it

  1. Cast Time Stretch by paying its mana cost, taking two extra turns after this one.
  2. At the beginning of your next upkeep, Progenitor Mimic triggers, creating a token copy of Scholar of the Ages.
  3. When the token Scholar of the Ages enters the battlefield, it triggers itself, returning Time Stretch and up to one other instant or sorcery card from your graveyard to your hand.
  4. Repeat.

What the combo produces