Mirror-Mad Phantasm, and Machine God's Effigy

Prerequisites

• Mirror-Mad Phantasm in hand or on the battlefield or in the command zone or in exile or in the graveyard or in the library
• Machine God's Effigy on the battlefield
• available

Steps

1. Activate Machine God's Effigy by tapping it, adding
2. Activate Machine God's Effigy by paying , shuffling Machine God's Effigy 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