Ugin's Nexus, Minimus Containment, and Mechanized Production

Prerequisites

• Ugin's Nexus on the battlefield
• Minimus Containment on the battlefield
• Mechanized Production on the battlefield
• Minimus Containment and Mechanized Production attached to Ugin's Nexus

Steps

1. At the beginning of your upkeep, Mechanized Production triggers, creating a token copy of Ugin's Nexus
2. Put the token Ugin's Nexus into exile due to the legend rule, causing you to take an extra turn after this one
3. Repeat each turn

Results

• Infinite turns