Obeka, Splitter of Seconds, Smaug the Magnificent, and Aggravated Assault

Prerequisites

• Obeka, Splitter of Seconds on the battlefield
• Smaug the Magnificent on the battlefield
• Aggravated Assault on the battlefield

Steps

1. Deal combat damage using Obeka, triggering its ability, causing you to get at least four extra upkeep steps
2. At the beginning of your upkeep, Smaug triggers, creating a Treasure token
3. Repeat step 2 during each other extra upkeep step, creating at least four additional Treasures
4. During your postcombat main phase, activate five Treasures by tapping and sacrificing them, adding
5. Activate Aggravated Assault by paying , causing you to untap all creatures you control and get an additional combat and main phase after this one
6. Repeat

Results

• Infinite Treasure tokens
• Infinite colored mana
• Infinite combat damage
• Infinite combat phases
• Infinite damage
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control