Fehrenmon is born 1000 years in the future, and is a direct descendant of the Ancient Warrior AncientGreymon. He is a Champion-class Hybrid Digimon whose name is derived from "Fahrenheit", which he has a good control over. His Digi-Core pulses powerful heat throughout his frame, causing the air around him to shimmer. The martial arts style he uses is similar to Kazama-style Karate.
- Blaze Viper: Takes a moment to focus heat and holy fire between cupped palms, then fires a stream of flames that will bend, twist, and turn to chase down a target.
- Fehren Frenzy: Charges heat and flames to hands and feet, then attacks with a physical combination.