just a little fyi if you havent made a cold sorc the main reason for making one is to take advantage of cold mastery becuse a metero sorc can do roughly 15k per impact on meteor while maxed synergy blizz does about 6k not sure on this number havent made one yet. but anyway blizz will still kill meph alot faster if you have a good cold mastery than if you were using a meteor sorc.