Riku of Two Reflections, Narset's Reversal, and Twice Upon a Time // Unlikely Meeting

Prerequisites

• Riku of Two Reflections on the battlefield
• Narset's Reversal in hand
• Twice Upon a Time // Unlikely Meeting in hand
• You control at least two Doctors
• each turn available

Steps

1. Cast Twice Upon a Time by paying
2. Riku's first ability triggers - choose not to pay
3. Holding priority, cast Narset's Reversal by paying , targeting Twice Upon a Time
4. Riku's first ability triggers, causing you to pay to copy Narset's Reversal, with the copy targeting the original Narset's Reversal
5. Resolve the copy of Narset's Reversal, copying the original Narset's Reversal targeting Twice Upon a Time, and returning the original Narset's Reversal to your hand
6. Resolve the copy of Narset's Reversal created in step 5, copying Twice Upon a Time and returning the original Twice Upon a Time to your hand
7. Resolve Twice Upon a Time, causing you to take an extra turn after this one
8. Repeat each turn

Results

• Infinite turns