WaterShuriken
"I..I..Iron Tail, Pikachu."
While I agree, it seems like Dragon-types are held in high regard and only Ash can have them in the main cast without suffering backlash from what I've seen.
Well its not that, its just that the only non-Ash Dragon Pokémon, well...
Iris' Axew... :|
Iris' Dragonite... :|
Iris' Gible... :/