[quote=@Archangel89]
As an opinion if I were to give myself a Gyrados what would you think would be a good drawback?
[/quote]
There’s a number of things I could spit out, but for the sake of comedy (and a slice of life narrative) the Gyarados could LOOK super intimidating as per the species, but is actually more docile than it’s more aggressive bretheren?

[quote=@Archangel89]
I have this weird idea that he uses the Wailord to help him delve into deep ocean depths but I can't logistically think of how that would work lol
[/quote]
Actually it’s canon in both the anime and the Pokémon Ranger spin offs that technology exists that lets trainers breathe underwater for indefinite amounts of time (Aqualungs). So long as you have a Pokémon to get you down there, you’d really only need that. Gyarados could just pull you down.