Swarm Intelligence, Storm-Kiln Artist, and Unsubstantiate

Prerequisites

• Swarm Intelligence on the battlefield
• Storm-Kiln Artist on the battlefield
• Unsubstantiate in hand
• Optionally, you have another nonland card in hand with the mana to cast it
• available

Steps

1. Cast any card by paying its mana cost, or wait for an opponent to cast one
2. Holding priority, cast Unsubstantiate by paying , targeting that spell
3. Swarm Intelligence and Storm-Kiln Artist trigger
4. Resolve the Storm-Kiln Artist trigger, creating a Treasure token
5. Resolve the Swarm Intelligence trigger, copying Unsubstantiate, with the copy targeting the original Unsubstantiate
6. Storm-Kiln Artist triggers, creating a Treasure token
7. Resolve the copy of Unsubstantiate, returning the original Unsubstantiate to your hand
8. Holding priority, activate the Treasures by tapping and sacrificing them, adding
9. Repeat from step 2

Results

• Infinite magecraft triggers
• Infinite storm count