The biggest misunderstanding of the Dunning Kruger effect is the idea that it only applies to certain people. It applies to everyone, we all overestimate our expertise at times. It's a cognitive bias that we all have to knowingly watch out for, not something that indicates stupidity.
Really? I know Gyarados gets it. I checked PokemonDB and it had those three. I know I have been hydropumped by a trainer before but have never been bounced on? Should of checked bulbapedia.. DB is bush league..