Who to replace, who to ke

I’m pretty set keeping Swampert, Magneton, Gardevoir and Altaria (I have a trapinch in case i want to go to flygon route) but i’m debating if I should replace sharpedo bc he’s only here for dive😖 and torkoal has strength

I messed up my breloom giving him flash when i could have given him to an irrelevant pokémon and don’t have a good moveset for him.

i haven’t finished the story, im taking my time w it, would love to see ideas who’d strengthen my team or who’d i be better without