Replying to #1
One, you have 3 Dragon types on the same team, where two of them are x4 weak to Ice.
If you run anything that is x4 weak to Stealth Rock, you ought to have a Rapid Spinner. Volcarona at 50% at the start means it won't get a chance to switch in, take a hit, and Quiver Dance. Even without the switch, you're going to have a ridiculously hard time to set up. Also, Hidden Power Grass on Volcarona is okay, but will most likely not OHKO Bulky Waters, and you shouldn't keep Volcarona in on a Water type anyway. I'd run HP Ground to deal with Heatran's Flash Fire, or Hidden Power Rock to deal with Flying types. Bulky Waters should be cleared out by the time you deploy Volcarona. This, coupled with Stealth Rock weakness, and there goes your entire core that the team is built around. It is interesting that you put Air Balloon on Volcarona since it doesn't have a Ground weakness. Life Orb would be more useful, assuming you've cleared the rocks away. I wouldn't be so concerned about Earthquake, but more concerned about the ever so common Stone Edge or Rock Slide. Since the majority of your team is unaffected by Ground moves, expect them to stick to Stone Edge.
You need something that can change the weather or at least block it. I feel that this gen only reinforces the use of Sandstorm, and a simple change of the weather can knock down potential counters. Either build yours to play nicely in the sand, or change the weather. An Excadrill under any weather condition other than Sandstorm is an easy kill. A Garchomp without the use of Sand Veil is much easier to take down...or you could use these abilities to your advantage by employing your own.
Your diversity of types is good for the most part, minus the 3 dragons. You have Bug, Psychic, Fire, Dragon, Fighting, Steel and Flying. You might want to get a Ghost or a Dark type to mix in there. I would count on the fact that a Rapid Spin blocker will be present on most teams since Volcarona is quite popular.
Overall, pretty good. Just not a fan of having 3 dragons on one team. No way to set up or remove rocks and not weather-friendly. I'd watch out for Revenge Killers as well. I can't wait to test out Multiscale Dragonite.
With all of the new Dream World setups, keep in mind that these are theoretical and not currently allowed since they haven't released these into the Dream World and obviously haven't released female versions of Dream World ability holders, which translates to not being able to breed these legally.
