Whim of Volrath, Sage of Hours, and Memory Crystal

Prerequisites

• Whim of Volrath in hand
• Sage of Hours on the battlefield
• Memory Crystal on the battlefield
• every turn available

Steps

1. Cast Whim of Volrath with buyback by paying , targeting Sage of Hours
2. Sage of Hours triggers, causing you to put a +1/+1 counter on it
3. Resolve Whim of Volrath, returning it to your hand
4. Repeat steps 1 through 3 four additional times
5. Activate Sage of Hours by removing all +1/+1 counters from it, taking an extra turn after this one
6. Repeat each turn

Results

• Infinite turns