And then there's Mawile, who's not huge nor really kaiju-esque and has a movepool the size of an actual kaiju.The example that always stood out to me was Aggron. In general these Pokémon that are supposed to huge, monstrous kaiju-esque things like Gyarados, Tyranitar, Aggron etc tend to have a lot of special elemental attacks.
It happened quite a bit with some Gen III mons for some reason, probably because it was before the physical/special split as well. They were a bit more focused starting with Gen IV.