Escape Protocol, Fluctuator, Surly Badgersaur, Eternal Witness, and Smoldering Crater

Prerequisites

• Escape Protocol on the battlefield
• Fluctuator on the battlefield
• Surly Badgersaur on the battlefield
• Eternal Witness on the battlefield
• Smoldering Crater in hand

Steps

1. Cycle Smoldering Crater for due to Fluctuator
2. Escape Protocol and Surly Badgersaur trigger
3. Stack the triggers such that Surly Badgersaur's ability resolves first, creating a treasure token
4. Resolve Escape Protocol's ability using to pay for it to blink Eternal Witness
5. When Eternal Witness ETBs, return Smoldering Crater to your hand
6. Resolve the cycling trigger and draw a card

Results

• Infinite card draw
• Infinite ETB
• Infinite LTB
• Limited by cards remaining in library