about cold skills for my pure int s/s ?

[omgomg1234]

hey i am lvl 20 pure int s/s i am confused wat shall i get in cold, i know i got to get the phy def buff, the passive,but do i need the snow shield (i have lvl 1 on it)? do i need frost nova series and the frost wall series? i read the pure int s/s guide but i saw the skills it said those are not that necessary to get, i want to get skills which are most necessory and i don't want to waste sp on skills that i will not use or use less times?
thanks for answering

[GrindingEternaly]

if you are pure int you will need the snow shleid to tha max lvl possible.

[Psylonite]

Ice skills from top to bottom in pic:

• Frost Guard
• Frost Wall
• Frost Nova
• Snow Storm
• Cold Armor
• Snow Shield

[omgomg1234]

but do i have to get all of them maxed i mean some of them are a bit useless?

[Shine]

You can skip out on maxing out the frost wall, and you can skip out on maxing frost nova. You should however get level 1 of the first two books(second book only needs lvl 1 for first skill). For the ice nukes, I haven't seen much use in the first or third book of it, third book is rather strange. But you should max out the second book. You can level up the first book, but personally I wouldn't do it. Stick with light nukes and weapon skills until level 50 where you can combo nukes without needing weapon skills.