Avatar Roku, Firebender, Hellkite Charger, and Iroh, Dragon of the West

Prerequisites

• Avatar Roku, Firebender on the battlefield
• Hellkite Charger on the battlefield
• Iroh, Dragon of the West on the battlefield

Steps

1. At the beginning of your combat phase, Iroh triggers
2. Declare Hellkite Charger as an attacker, triggering its firebending ability, its regular ability and Avatar Roku
3. Resolve the Avatar Roku and firebending triggers, adding ten
4. Resolve the second Hellkite Charger trigger, causing you to pay to untap all attacking creatures and to get an additional combat phase after this one
5. Repeat

Results

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