Just keep in mind those annoying Dialgas that run a ton of speed and SAtk with LO Draco Meteor because it will foil your Groudon plan and cost you a lot of momentum. Unfortunately there is no EV spread that guarantees that Groudon will survive and OHKO back, while also OHKOing defensive Dialgas (without Life Orb anyways), though 36 HP / 220 Atk / 252 SDef comes very close. Of course, you lose a lot of physical walling ability....
Ok with that out of the way let's get into finding out the weaknesses and such.
Gliscor is probably one of the biggest concerns at the moment imo. Sure, Groudon's Fire Punch will break its Subs every time but it can set up on Jirachi (and potentially Skarmory/Kyogre/Latias, depending on the situation) and still cause a lot of mess. If Gliscor doesn't have Taunt then Skarmory can stall it, but if it does you're in a tight spot. Unfortunately I don't exactly have a solution to this, unless you're willing to use Icy Wind Skarmory lol.
Palkia as stated before can be quite a chore to handle because regardless of what weather you have out it can easily destroy your switch ins on a single mispredict. To fix this, and also handle whatever issues you have with mix zekrom and kingdra, you can try Grass Arceus over Latias, but this does make you more vulnerable to fires and Spikes. A set with CM Ice Beam Judgment Recover could work (Judgment due to Manaphy really). If you've found that Palkia isn't that much of an issue, just keep Latias.
Expert Belt Groudon is an option to OHKO Rayquaza from full health, which is great if they decide to use MixRay lead
Not much to say. Great team, a few issues here and there but for the most part the team should perform consistently well.
Last edited by Jibaku; Sep 13th, 2012 at 6:52:05 PM.