Sage of Hours, Donatello, the Brains, and Bootleggers' Stash

Prerequisites

• Sage of Hours on the battlefield
• Donatello, the Brains on the battlefield
• Bootleggers' Stash in the graveyard

Steps

1. Activate five lands by tapping them, creating five Treasure tokens and five Mutagen tokens due to Donatello
2. Activate the five Treasures by tapping and sacrificing them, adding
3. Activate the five Mutagens by paying , tapping and sacrificing them, putting five +1/+1 counters on Sage of Hours
4. Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one
5. Repeat each turn

Results

• Infinite turns
• Lock