well I've read over lots of comments and looked at the team and like everyone has said it is really solid! I'm really happy someone else is using rain dance starmie :D. I have him on my team! A suggestion to this though is that you switch pychic for thunderbolt, or thunderwave. Yes you'd lose stab but the status paralysis gives you can cripple a lot of sweepers, and a lot of your pokemon would love the other team to be crippled with paralysis! That comboed with a pokemon asleep thanks to spore, can easily cripple good portions of there team!
Lastly this is only a small problem in my eyes, but four out of six of your pokemon have some sort of boosting move meaning they have to take a turn to setup. This I believe could be problematic on teams with one or more taunters, or teams with lots of priority. You may consider chaning one of these pokemon to a banded or scarfed pokemon, so you can quickly destroy. PErhaps (even though it isn't used all to often) a banded dragonite that would have instant power in their face. But i'm still somewhat new to this so take thes comments or leave em :D.