Obeka, Splitter of Seconds + Smaug the Magnificent + Time Sieve

Prerequisites

• An opponent cannot block Obeka.

Steps

1. 1At the beginning of your upkeep, Smaug triggers, creating a Treasure token.
2. 2Deal combat damage using Obeka, triggering its ability, causing you to get at least four extra upkeep steps.
3. 3Repeat step 1 during each extra upkeep step, creating at least four additional Treasures.
4. 4Activate Time Sieve by tapping it and sacrificing five Treasures, causing you to take an extra turn after this one.
5. 5Repeat each turn.

Effects

• Infinite turns
• Lock