Avatar Roku, Firebender, Hellkite Charger, and Roaming Throne

Prerequisites

• Avatar Roku, Firebender on the battlefield
• Hellkite Charger on the battlefield
• Roaming Throne on the battlefield

Steps

1. Declare Hellkite Charger as an attacker, triggering it once and Avatar Roku twice
2. Resolve both Avatar Roku triggers, adding twelve
3. Resolve the Hellkite Charger trigger, causing you to pay to untap all attacking creatures and to get an additional combat phase after this one
4. Repeat

Results

• Infinite combat phases
• Infinite red mana
• Infinitely powerful creatures you control until end of turn