>>14255939Dragons resist Fire, Water, Grass, Electric on their own. That is a massive bunch of useful resists. They laugh at Fire Blast, Hydro Pump, Thunder, and lol grass.
Combining them with most types yields even more ridiculous statistical advantages.
Combined with incredible movepools, generous stats (allocated well), and favorable abilities and they're special snowflakes.
Fighting, Ice, Ground, Rock may be good offensive types but they carry far more problems of their own while not being any sort of a match for Dragons.