Requires

Swarm Intelligence must be on the battlefield. Storm-Kiln Artist must be on the battlefield. Unsubstantiate must be in hand. Optionally, you have another nonland card in hand with the mana to cast it. Mana needed:

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