Riku of Two Reflections, Narset's Reversal, and Alrund's Epiphany

Prerequisites

• Riku of Two Reflections on the battlefield
• Narset's Reversal in hand
• Alrund's Epiphany in hand
• each turn available

Steps

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

Results

• Infinite turns