Ob Nixilis, Captive Kingpin, Prosper, Tome-Bound, Sensei's Divining Top, and Reckless Fireweaver

Prerequisites

• Ob Nixilis, Captive Kingpin on the battlefield
• Prosper, Tome-Bound on the battlefield
• Sensei's Divining Top in hand
• Reckless Fireweaver on the battlefield
• available

Steps

1. Cast Sensei's Divining Top by paying
2. When Sensei's Divining Top enters the battlefield, Reckless Fireweaver triggers
3. Holding priority, activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library
4. Resolve the Reckless Fireweaver trigger, dealing 1 damage to each opponent
5. Ob Nixilis triggers, putting a +1/+1 counter on it, and exiling Sensei's Divining Top from the top of your library with the ability to cast it from exile until your end step
6. Cast Sensei's Divining Top from exile by paying
7. Prosper triggers, creating a Treasure token
8. When the Treasure enters the battlefield, Reckless Fireweaver triggers, dealing 1 damage to each opponent
9. Ob Nixilis triggers, putting a +1/+1 counter on it, and exiling the top card of your library with the ability to cast it from exile until your end step
10. Holding priority, activate the Treasure by tapping and sacrificing it, adding
11. Resolve the Sensei's Divining Top spell
12. Repeat from step 2

Results

• Near-infinite +1/+1 counters on Ob Nixilis
• Near-infinite damage
• Near-infinite storm count
• Near-infinite card draw
• Near-infinite draw triggers
• Exile a portion of your library with the ability to play the exiled cards until end of turn