Icefury talent says: … Frost Shock…damage 4 aditional targets…
Frost shock casted after Icefury proc keeps hitting only 1 target, i dont know about the other effects in the talent if they work either.
I know Icefury and Frost Shock do insignificant damage, but you could try to fix it.
Btw, thanks for reverting some of the nerfs coming live next reset. There is no point making Ele Shammy a dead spec.