Storm-Kiln Artist, Sea Gate Stormcaller, Three Steps Ahead, and Narset's Reversal

Prerequisites

• Storm-Kiln Artist on the battlefield
• Sea Gate Stormcaller in hand
• Three Steps Ahead in hand
• Narset's Reversal in hand
• available

Steps

1. Cast Sea Gate Stormcaller by paying
2. When Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less
3. Cast Three Steps Ahead by paying plus an additional to select its second mode, targeting Sea Gate Stormcaller
4. Sea Gate Stormcaller and Storm-Kiln Artist trigger
5. Resolve the Storm-Kiln Artist trigger, creating a Treasure token
6. Resolve the Sea Gate Stormcaller trigger, copying Three Steps Ahead, with the copy targeting Sea Gate Stormcaller
7. Storm-Kiln Artist triggers, creating a Treasure token
8. Resolve the copy of Three Steps Ahead, creating a token copy of Sea Gate Stormcaller with haste
9. When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less
10. Holding priority, activate two Treasures by tapping and sacrificing them, adding
11. Cast Narset's Reversal by paying , targeting Three Steps Ahead
12. Sea Gate Stormcaller and Storm-Kiln Artist trigger
13. Resolve the Storm-Kiln Artist trigger, creating a Treasure token
14. Resolve the Sea Gate Stormcaller trigger, copying Narset's Reversal, with the copy targeting the original Narset's Reversal
15. Storm-Kiln Artist triggers, creating a Treasure token
16. Resolve the copy of Narset's Reversal, returning the original Narset's Reversal to your hand and creating a copy of Narset's Reversal targeting Three Steps Ahead
17. Storm-Kiln Artist triggers, creating a Treasure token
18. Resolve the Narset's Reversal copy, returning Three Steps Ahead to your hand and creating a copy of Three Steps Ahead targeting Sea Gate Stormcaller
19. Storm-Kiln Artist triggers, creating a Treasure token
20. Resolve the Three Steps Ahead copy, creating a token copy of Sea Gate Stormcaller with haste
21. When the token Sea Gate Stormcaller enters the battlefield, it triggers, copying the next instant or sorcery spell you cast this turn with mana value 2 or less
22. Activate four Treasures by tapping and sacrificing them, adding
23. Repeat from step 3

Results

• Infinite ETB
• Infinite storm count
• Infinite magecraft triggers
• Infinite creature tokens