Mobile Garrison, Hellkite Charger, and Nyx Lotus

Prerequisites

• Mobile Garrison on the battlefield
• Hellkite Charger on the battlefield
• Nyx Lotus on the battlefield
• Mobile Garrison is a creature and does not have summoning sickness
• Your devotion to red is at least seven
• An opponent is unable to block and kill Mobile Garrison and Hellkite Charger

Steps

1. Declare Mobile Garrison and Hellkite Charger as attackers
2. Mobile Garrison and Hellkite Charger trigger
3. Resolve the Mobile Garrison trigger, untapping Nyx Lotus
4. Activate Nyx Lotus by tapping it, adding at least seven
5. Resolve the Hellkite Charger trigger, causing you to pay to untapping all attacking creatures you control and causing you to get an additional combat phase after this one
6. Repeat each combat phase

Results

• Infinite combat phases