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

Riku of Two Reflections

Narset's Reversal

Twice Upon a Time // Unlikely Meeting

How it works

1. Cast Twice Upon a Time by paying 4.
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.

This brilliant loop hinges on looping extra turns by leveraging Riku of Two Reflections to duplicate Narset's Reversal mid-cast. By targeting your original Twice Upon a Time with Narset's Reversal, Riku of Two Reflections steps in with his mana-payment trigger to copy the bounce spell, allowing you to bounce and recast Twice Upon a Time indefinitely. Meanwhile, Narset's Reversal safely returns itself to your hand while generating a fresh copy to repeat the process, turning every single turn into an endless loop of time-bending repetition.