I have right now 1541 with 12 wins and 7 loses. Pretty decent. The hardest thing is that i hardly manage to play against water types (especially bulky ones). All I can do is to revenge kill them with ChoiceSpecs Rotom-H.
Well , half of my team is SR weak , good thing I have Taunt Froslass that helps me to stop hazards and spikes support is really useful. Because of that Froslass is my lead most of times.
Rhyperior is also awsome for walling Raikou and setting up rocks.
SubRoost Honchkrow is so awsome , is walled only by steel types , but there aren't that many in UU.
And because I wanted a Heracross check , i picked Duscops. Lol JK. I used Dusknoir , because is the bulkiest Ghost type avalaible in this challenge and that...doesn't suck so bad? Is surprisingly good. A lot of teams are unprepared for SubPunch Dusknoir and they usually sent out their Umbreon against me. Also priority in Shadow Sneak is nice for more dmg and Will-O-Wisp is crippling physical attackers so they will not break my Sub so easy , plus a second spinblocker is always nice.
Also Sharpedo with Spikes an SR support is really great , cleaning really good weakened teams.