Smaug the Impenetrable, Angrath's Marauders, and Street Urchin

Prerequisites

• Smaug the Impenetrable on the battlefield
• Angrath's Marauders on the battlefield
• Street Urchin on the battlefield
• available

Steps

1. Activate your commander using the ability granted to it by Street Urchin by paying and sacrificing another creature or artifact, dealing 2 damage to Smaug due to Angrath's Marauders
2. Smaug triggers, creating two Treasure tokens
3. Activate a Treasure by tapping and sacrificing it, adding
4. Repeat

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers