Denry Klin, Editor in Chief, Sage of Hours, and Thassa, Deep-Dwelling

Prerequisites

• Denry Klin, Editor in Chief on the battlefield
• Sage of Hours on the battlefield
• Thassa, Deep-Dwelling on the battlefield
• Denry Klin has at least five +1/+1 counters on it

Steps

1. At the beginning of your end step, Thassa triggers, blinking Sage of Hours
2. Sage of Hours enters the battlefield, triggering Denry Klin, putting at least five +1/+1 counters on Sage of Hours
3. Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one
4. Repeat each turn

Results

• Infinite turns