Originally Posted by Fat alexwolf
Another option for Serperior, that noone has mentioned yet is Twister. Yeah you heard well. With SR in play it 2hkoes Salamence if it comes in on Leaf Storm. It can also deal ~54% to offensive Dragonite at +2 and with a LO, which is not bad, considering the fact that it allows you to carry a HP different than ice to deal with other threats.
Twister is a horrible move choice... It has 40 BP, lower than HP Ice, and only hits dragons super-effectively. While Twister may have better neutral coverage, it still leaves Serperior walled by Steels. Besides, while you' at it, why don't you use HP Dragon instead? (Not really)