Um, no. i said why bother using an offencive spread on dnite when bulky is so much better, and salamence even sorta outclasses this. its just offencive with roost and lefties
1) No, it is not out-classed. Ask around the rest of the site, and see what responses you get. Check the Dragonite analysis. Seriously, if you're not going to use any outside evidence, then you might as well not even argue.
2) Um, yes.
u might as well switch to an offencive ddmence with lefties.
@aost: Yay, it's updated!
Okay, I think it's clever that you have Deoxys-S out-sped Excadrill, but it's really not necessary because you're using a Drizzle team, meaning that Excadrill should be slow anyway (assuming you beat the Tyranitar). Therefore, I would give Deoxys-S Leftovers instead, to improve its longevity. Since you won't have a Choice Scarf, you should replace Trick as well, because you don't want to get rid of your Leftovers. I would probably go for Taunt. And because you're not trying to out-speed Excadrill, you could use the Speed EVs elsewhere. You might want to for max Atk, and ditch the SDef, but I suppose that's your choice.
Your Rotom-W looks solid, but I have to wonder, what are those 52 SDef EVs doing for you? If it were me, I would just pump them into SAtk, to make it hit harder.
Politoed: I'm not sure exactly what Speed tier you're going for, but I would get rid of the SDef investment and just go max Speed, unless there is a specific Speed you're going for. Otherwise, he looks good.
Heatran really wants to have Lava Plume instead of Heat Wave. In the rain, Fire attacks will be really weak anyway, so there's no point in using a powerful move. Instead, you should use Lava Plume because it has a 30% chance to burn the opponent, which will help Heatran live longer and wear down the opponent.
On Latios, scrap Shadow Ball. There's nothing that it hits harder than your other moves. Use Thunder there and you'll be fine.
Now, for Gastrodon. I would say that you might as well go with max SDef or max Def, amd then max HP, instead of being mixed. However, I am not very familiar with Gastrodon, so there could be benefits to going mixed that I'm not aware of. Don't take my word for it, but I think that doing one or the other would be best. I can say with certainty, though, that you'll want Scald over Surf. Because it's a defensive Pokemon, it would really appreciate the 30% burn chance.
Edit: Do not replace him for Swampert or Feraligatr. Feraligatr can't do a defensive set at all, he lacks the bulk and movepool for it. Swampert doesn't get Recover, and its selling point is Stealth Rock, which you already have. Neither of them can do what Gastrodon does as well as Gastrodon.
Your team has a problem, in that it's weak to other weathers if you lose the weather war. However, if you win the weather war, it's a quite solid team.
So, good luck with the team, aost!