Riku of Two Reflections + Narset's Reversal + Temporal Mastery

Prerequisites

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Steps

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

Effects

• Infinite turns
• Lock