Prerequisites
- Progenitor Mimic on the battlefield
- Time Walk on the battlefield
- Eternal Witness on the battlefield
- Enough mana available to cast the extra turn spell each turn
- Progenitor Mimic is a copy of Eternal Witness
Steps
- Cast Time Walk by paying its mana cost, taking an extra turn after this one
- At the beginning of your next upkeep, Progenitor Mimic triggers, creating a token copy of Eternal Witness
- When the token Eternal Witness enters the battlefield, it triggers itself, returning Time Walk from your graveyard to your hand
- Repeat
Results
Required Cards 3
Progenitor Mimic
Creature — Shapeshifter
Eternal Witness
Creature — Human Shaman