>>35993401I've posted this "rival" before but now I have him kinda better figured out.
>BackstoryOlder sailor who's a friend of the region's professor and helps look out for you for him during your travels along the region's island-chain. Doesn't fit the normal "rival" archetype but there would be a more traditional rival too.
>PersonalityJovial, excitable, hot-headed. Always aiding people around the islands.
>Partner PokemonInkay -> Malamar.
>TeamPic related; in the post-game you can rematch him with swapped around Pokémon that still fit the theme of "aquatic without the water-type".
>Actions in the storyAids you by offering you a ride to the next island within the region's island-chain, his only fare being a battle to "test your might" and see if you're up for the next island's challenges. As he's practically a caretaker on the islands he gets swept up in the plot later to stop the evil team before their plan destroys the region.
>ThemeLike I said before, "aquatic Pokémon/animals without the water-typing".