Narset's Reversal, Storm-Kiln Artist, and Bonus Round

Prerequisites

• Narset's Reversal in hand
• Storm-Kiln Artist in hand
• Bonus Round in hand

Steps

1. Cast Bonus Round by paying
2. Storm-Kiln Artist triggers, creating a Treasure token
3. Resolve Bonus Round
4. Cast the additional instant or sorcery by paying its mana cost
5. Bonus Round and Storm-Kiln Artist trigger
6. Resolve the Bonus Round trigger, copying the instant or sorcery
7. Storm-Kiln Artist triggers
8. Resolve both triggers from this step and step 5, creating two Treasure tokens
9. Activate two Treasures by tapping and sacrificing them, adding
10. Cast Narset's Reversal by paying , targeting the spell from step 4
11. Bonus Round and Storm-Kiln Artist trigger
12. Resolve the Storm-Kiln Artist trigger, creating a Treasure token
13. Resolve the Bonus Round trigger, copying Narset's Reversal targeting the original Narset's Reversal
14. Storm-Kiln Artist triggers, creating a Treasure token
15. Resolve the copy of Narset's Reversal, causing you to copy Narset's Reversal targeting the original spell from step 4, and then return the original Narset's Reversal to your hand
16. Storm-Kiln Artist triggers, creating a Treasure token
17. Resolve the copy of Narset's Reversal, copying the spell from step 4 and returning the original spell from step 4 to your hand
18. Storm-Kiln Artist triggers, creating a Treasure token
19. Resolve the copy of the spell from step 16
20. Holding priority, repeat from step 4

Results

• Infinite Treasure tokens
• Infinite colored mana
• Infinite copies of the casted instant or sorcery
• Infinite magecraft triggers
• Infinite storm count