Progenitor Mimic, Time Stretch, and Greenwarden of Murasa

Prerequisites

• Progenitor Mimic on the battlefield
• Time Stretch on the battlefield
• Greenwarden of Murasa on the battlefield
• Progenitor Mimic is a copy of Greenwarden of Murasa
• each turn available

Steps

1. Cast Time Stretch by paying , taking two extra turns after this one
2. At the beginning of your next upkeep, Progenitor Mimic triggers, creating a token copy of Greenwarden of Murasa
3. When the token Greenwarden of Murasa enters the battlefield, it triggers itself, returning Time Stretch from your graveyard to your hand
4. Repeat

Results

• Infinite turns