Aminatou, the Fateshifter, Teferi, Master of Time, Nicol Bolas, Dragon-God, and Karn Liberated

Prerequisites

• Aminatou, the Fateshifter on the battlefield
• Teferi, Master of Time on the battlefield
• Nicol Bolas, Dragon-God on the battlefield
• Karn Liberated on the battlefield

Steps

1. Activate Nicol Bolas using Karn's first loyalty ability by putting four loyalty counters on it, causing a player to exile a card from their hand
2. Activate Aminatou's first loyalty ability by putting a loyalty counter on it
3. During your next turn, activate Nicol Bolas using Teferi's third loyalty ability by removing ten loyalty counters from it, causing you to take two extra turns after this one
4. Activate Aminatou's second loyalty ability by removing a loyalty counter from it, blinking Nicol Bolas, causing it to re-enter the battlefield with four loyalty counters on it
5. Activate Nicol Bolas using Karn's first loyalty ability by putting four loyalty counters on it, causing a player to exile a card from their hand
6. Repeat

Results

• Infinite turns