Requires

Rootha, Mercurial Artist must be on the battlefield. Through the Breach must be in hand. Storm-Kiln Artist must be on the battlefield. Xorn must be on the battlefield. Mana needed:

Steps

1. Cast Through the Breach by paying .
2. Storm-Kiln Artist triggers, creating two Treasure tokens.
3. Activate the Treasure tokens by tapping and sacrificing them, adding .
4. Activate Rootha by paying and returning it from the battlefield to your hand, copying Through the Breach.
5. Storm-Kiln Artist triggers, creating two Treasure tokens.
6. Resolve the copy of Through the Breach, putting Rootha from your hand onto the battlefield.
7. Repeat from step 3.

Results