ladder quest 4 blizzsorc

I have created a Blizzsorc and it has only 4k damage with 80% reduce cold res to monsters is this the highest it gets and will this kill mephy and pendle quickly or do i have to do some thing else..

my character

blizzard and all synergies maxed
1 to teleport
1 to frozen armor
1 to telekinesis
5 to cold mastery

Full tals set
2x nagel rings
war travs
chance gloves
lidless shield

i know sojs would be nice to wear but have none yet.
is this supposed to be a strong mf character for hell mephy pindle and baal mfing?

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