this is close to what i played at nh states,it was soooo dependable, it has t2 80 EVERY game you start with shuppet but i forgot basic techs that i needed like sableye and minun, a tech pachi or rayquaza would help vs togekiss varients i play it a lot differently now but here you go
pokemon 13
4-banette
4-shuppet
2-lunatone
1- solrock
1- minun
1- sableye cg
trainers 34
3 professor birch
3 felicity's
1 steven's
2 holon mentor? i forget
4 pluspower
4 pokenav
3 pokedex
2 celio's
2 dusk ball
2 master ball
2 night maintenance
3 lake boundary
1 strength charm
2-castaway(probably not anymore)
energy 13
4 multi (sol charge/ tag play)
9 psychic
keep the solrock, it won me a game vs houndoom by getting rid of resistance, i would have cryed losing to a third darkness deck out of 5 rounds, plus sol charge is a very useable attack, with 4 multi starting with either solrock or lunatone means t2 dead pachirisu, and if you're sol charging you could be speeding your setup
also they come in such handy for getting over the hp lump against anything not weak to psychic, especially darkrai and blissey, dark blissey is fighting weak so sol charge does 50 and attach from discard, then finish off with spiteful pain, this bad macthup is also why you have sableye, it's a waste of bench space but to shut down an autoloss is worth it
i'm not the best banette player but i know how to play this list pretty well and it works