I'm gonna just label some threats and give you some advice. MixApe is a HUGE threat, as it threatens the majority of your team with Overheat / Close Combat / 2 coverage moves, and so is Mamoswine, as Icicle Crash / Earthquake / Ice Shard / coverage move wrecks you. In addition, the majority of your team is also walled by Poison Heal Gliscor, and your team REALLY hates Tornadus-T. There's really no point in running Rapid Spin on Tentacruel when you already have Xatu, and although your team is "anti-weather", well... there's really not much you can do in return, as Xatu is basically dead weight, and with those sets, Landorus-T and Tentacruel aren't really going to do anything except be set-up bait for the likes of Breloom, Conkeldurr, RP Genesect, CM Keldeo, etc. Furthermore, Rotom-W has supereffective STAB coverage on 4 of your pokes, and can always just Volt Switch out of Genesect and Abomasnow. I suggest maybe dumping Abomasnow, as it doesn't really add any offensive presence, and the Hail hurts your own team as well. Definitely DON'T be running Rocky Helmet on two pokes that are just going to get wrecked by Ice Beam anyway.