Insight on my pokemon team?

Very GOOD team!! I kinda always pick Fire-types as my starters. Dunno why. Anyways, maybe, if you have Pokemon Pearl, Diamond, or Platinum you should trade Mantine for Empoleon. It can learn Brine and man, that move is powerful!! Metagross and Gallade I'd switch out because, no offense, they're not that powerful. You should get Giratina. Though Metagross has some pretty excellent moves, I'd still switch him out. Maybe you should get a Raichu. And put in Giratina. I have a Giratina, but I wanna keep him. I heard you can trade them online now. I put a Pikachu down there and got a Bastiodon back. If you want a Steel-type Pokemon, I highly suggest getting Steelix. Very powerful Pokemon. Also, Steel-type Pokemon have high Defense. So, your opponent would have to hit you with a critical hit-type move. And if this is just for fun, like Wi-Fi battling, then I still suggest Steelix. You could boast about your matches to your friend. Good luck!! Hope that answer helps.