Mirror-Mad Phantasm, and Mirage Mirror

Prerequisites

• Mirror-Mad Phantasm on the battlefield
• Mirage Mirror on the battlefield
• available

Steps

1. Activate Mirage Mirror by paying , causing it to become a copy of Mirror-Mad Phantasm until end of turn
2. Activate Mirage Mirror by paying , shuffling Mirage Mirror into your library and milling your entire library due to it not having a card named Mirror-Mad Phantasm in it

Results

• Infinite self-mill