Forgot about the Rotom issue, but the point is that most of the team is Dark weak, and hence Pursuit weak. Also, Ghost Pokemon wreck that tam as well, able to hit the many psychic/ghost Pokemon for SE damage.
So my instinct says Scizor, TTar, Shanderaa, opposing Gengar, Lucario (Crunch), U-turn Jirachi, Scarfed Mienshao (U-turn).
Its just so Bug and Dark weak... The exact sets for the above list I don't know yet, but I'm pretty sure slap a Scarf onto any one of them and you can cripple half his team, maybe not OHKO, but cripple for sure.