Fire Lord Ozai, Hellkite Charger, and Helm of the Host

Prerequisites

• Fire Lord Ozai on the battlefield
• Hellkite Charger on the battlefield
• Helm of the Host on the battlefield

Steps

1. At the beginning of your combat phase, Helm of the Host triggers, creating a token copy of the creature it is attached to
2. Declare Hellkite Charger and Fire Lord Ozai as attackers, triggering their abilities
3. Resolve the Fire Lord Ozai trigger, causing you to sacrifice the token made in step 1 and add an amount of equal to the token's power
4. Resolve the Hellkite Charger trigger, causing you to pay to untap all attacking creatures and to get an additional combat phase after this one
5. Repeat each combat phase

Results

• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite combat phases
• Infinite LTB