Among the various Digimon anime, the third season, Digimon Tamers is often hailed as the most popular. The tale of Takato and his friends stands out for its slightly more mature approach, containing some of the franchises most terrifying characters. One of these digital nightmares could be considered a world-ending threat to the world, despite its brief appearance in the series: Megidramon.
https://screenrant.com/digimon-tamers-megidramon-most-dangerous-guilmon/