My response in no particular order:
No... just no. I really could agree with the flareon-Magmortar switch because flareon has a bad moveset and lackluster stats. But what does everyone have against 1.1x items like charcoal and blackbelt? I've gotten no suggestions other than Life Orb and that's not an improvement over charcoal at all. And for Wise Glasses, it pretty much does the same thing as charcoal and blackbelt, but for multiple moves, not just fire and fighting. Which is why I chose to use it, but I only have one set, whereas I can get multiple blackbelts and I HAVE three charcoal.
I chose Lava Plume for Typhlosion because Typholsion's attack is much, much better than his special attack, so it's much more powerful than flamethrower/fire blast.
And seeing as how I'm not doing uber-competitive play, natures make no difference. I would never battle these guys at over level 50, and natures won't affect stats enough to change the tide of battle. It's not like I'm going to Vitamin these guys up, or max out their EVs and breed for beneficial natures+best IVs. No, I don't do that snobby competitive play because it's not fun in my book. I battle with chosen party pokemon that I obtain rather early and pit them against my friend's party pokemon. None of my friends specialty breed for preferential IVs and natures either, we just battle for fun. Besides, picking natures, IVs and using vitamins is no fun. Half of the experience is the luck factor.
Anyway, that's my preference. Now, I would breed for better IVs and natures if I were actually doing real competitive play, but this team will be mostly for my own fun and experience (first actual team I've ever built, other than the teams I take through the story mode) and for playful battles with my friends.
wagner- your manaphy is a legendary, and I don't battle with legendaries unless it's a strictly-legendary battle. Therefore you'd have to exchange him for something else. And a solarbeam takes care of the starmie, rampardos, garchomp, and gliscor, if used under the right circumstances. Thunderpunch would rape that Gyarados sideways, upside down, left and right, and inside out or however you prefer it. And I could definitely do work on whatever you replace manaphy with.
Thanks a lot for the advice guys. I know charcoal and blackbelt aren't preferred, but what else can I use? And should I replace the Flareon with a rapidash instead? I can't get a magmortar because they are REALLY hard to come by. I can't even GTS a magby because I haven't seen anything in the family, and magmarizers are expensive.
Another thing, about proposed movesets. What makes Overheat better than Blast Burn? Overheat can only be used once, and it has to be used last too. That's the exact same as Blast burn, only blast burn is more powerful. And notice how I chose it for only ONE pokemon because I couldn't think of a better move? And I hate those huge-recoil moves like wood hammer and flare blitz unless you have a lot of HP with a lot of defense. And none of my choice pokemon have either of those. Flare Blitz once and then I become too vulnerable for my own good.
Pachirisu- why U-turn or grass not? That covers the water types, but so does thunderpunch.... No-one in their right mind uses gastrodon, whiscash or quagsire because they aren't that great, and if I did happen to find one, I would close combat it for a near-instant kill. And I wouldn't replace night slash with stone edge on blaziken becuase night slash is for the psychic types, stone edge does nothing for them. I like your Arcanine set, but what's crunch for? Without STAB, Crunch is almost useless to Arcanine, it doesn't cover any of his weaknesses, and at 80 power, it's pointless to have. It doesn't even make the foe flinch anymore. But I love all the other choices. Didn't think of swords dance, but my pokemon don't really have the leisure to use those kinds of moves- they aren't tanky enough. All of them tend to have great attacks/speeds, but low low low low defenses and sp. defenses. That's the problem with most fire pokemon. And none of your reccommended movelists include solarbeam, why?
Anyhow, I'm sorry if that sounds complanatory/neative/whiney/overuse of frontslashes. I really am glad I'm getting good advice. Thanks a lot guys, I will take into consideration all this advice.