Sensei's Divining Top, Echoes of Eternity, and Urza, Lord Protector

Prerequisites

• Sensei's Divining Top in hand
• Echoes of Eternity on the battlefield
• Urza, Lord Protector on the battlefield

Steps

1. Cast Sensei's Divining Top by paying
2. Echoes of Eternity triggers, creating a copying the Sensei's Divining Top spell
3. Resolve both Sensei's Divining Top spells
4. Activate the nontoken Sensei's Divining Top by tapping it, causing you to draw a card and put Sensei's Divining Top from the battlefield onto the top of your library
5. Activate the token Sensei's Divining Top by tapping it, causing you to draw Sensei's Divining Top, and causing you to put the token Sensei's Divining Top from the battlefield onto the top of your library
6. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite storm count