Golbez, Crystal Collector, Repository Skaab, and Time Stretch

Prerequisites

• Golbez, Crystal Collector on the battlefield
• Repository Skaab in hand
• Time Stretch in hand
• at most each turn available

Steps

1. Cast Time Stretch by paying , causing you to take two extra turns after this one
2. During your first extra turn, cast Repository Skaab by paying
3. When Repository Skaab enters the battlefield, its first ability triggers, causing it to exploit itself
4. Its second ability then triggers, returning Time Stretch from your graveyard to your hand
5. At the beginning of your end step, Golbez's second ability triggers, returning Repository Skaab from your graveyard to your hand
6. Repeat during your second extra turn

Results

• Infinite turns