Yep, the latest patch moved the Sleet storm Rune for Ray of Frost to level 38! I was bummed to see this, strictly from a Beta play fun standpoint. It is by far my favorite skill in the whole of Diablo III.
I guess level 38 would give me something to look forward to, but level 38 is pretty high up there. I'm thinking now I might run a WD instead first.
That's what I get for falling in love with a skill in Beta! ha.
Too bad, it was one of my favorites as well, enjoyed using it with diamond skin, was sad when they changed electrocute to later a few patches ago as well. If it's your favorite though just level up a wizard, you'll be able to use it in the harder difficulties when the game isn't so easy.