Sensei's Divining Top, Echoes of Eternity, and Birgi, God of Storytelling // Harnfel, Horn of Bounty

Prerequisites

• Sensei's Divining Top in hand
• Echoes of Eternity on the battlefield
• Birgi, God of Storytelling // Harnfel, Horn of Bounty on the battlefield
• available

Steps

1. Cast Sensei's Divining Top by paying
2. Echoes of Eternity and Birgi trigger
3. Resolve the Birgi trigger, adding
4. Resolve the Echoes of Eternity trigger, creating a copying the Sensei's Divining Top spell
5. Resolve both Sensei's Divining Top spells
6. 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
7. 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
8. Repeat

Results

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