Dice? Whose that 0_0. I can't believe I forgot XATU DX. Also lol yes lando-t is viable, U-turn + Intimidate is cool. That and it is the BEST Groudon counter in the game. It is much more viable then Claydol.
I should be on tomorrow and this weekend. And yea, am familiar with that core, as I've seen Dice used it to success on the ladder. I've also played against it once or twice too, you should also probably mention xatu as a decent partner for gene + zekrom, helping to keep those hazards off. Ground types [groudon, arceus ground, hippodown, landorus-t o.o?, gliscor] can be annoying if you intend to volt switch all day too, but obviously these can be played around with smart play and / or good team mates.
The funniest thing just happened to me. You remember those kyogre teams I sent to you / the ones I was talking about? I was looking for ways to improve them and I ended up making the near-exact teams I made originally back in bw1 ubers, lol. The teams were never bad, I was just looking for ways to make them "better". But kinda funny how I tried to change them, and ended up going back to the orginal