Groudon / Kyogre / Latias / Giratina-O / Skarmory / Jirachi
Hi, this is obviously a great team and is one of the few legit 'double weather' teams that you see running around in Ubers. A great defensive backbone backed up by two very underrated Steel-types makes this a formidable team to face...
This team is weak to, in order of importance -
Mixed Dancer Rayquaza - has the potential to severely hurt or OHKO everything. Can't let it set up either.
Darkrai - simply because you have nothing to take the sleep, i guess groudon can take it after setting up sr !
Mixed Zekrom - no arceus ground or grass makes the team sad :<
Okay so these are some really obscure threats, outside of Darkrai, which will never sweep you anyway. That being said, the lack of a Rapid Spin user may be a bit worrisome against a double switching Deo-s or suicide Qwilfish, Forretress, or Tentacruel backed up by the right team...
Of course, there is literally nothing I can change that would not compromise the team in some other, greater fashion. I really like fat Choice Scarf Kyogre.