Hellkite Charger, and Firebending Student

Prerequisites

• Hellkite Charger on the battlefield
• Firebending Student on the battlefield

Steps

1. Declare Hellkite Charger and Firebending Student as attackers, triggering each of their abilities
2. Resolve the Firebending Student trigger, adding an amount of equal to its power
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 each combat phase

Results

• Infinite combat phases
• Infinite red mana
• Infinite combat damage