Well ice is really important for int builds, idk about str builds. You can go 3 masteries (Weapon/Light/Ice) or have your weapon at 90 and put rest into ice, fire, and weapon if you want. Most builds I have seen from ksro ss, is...
Int builds:
Pure Int/Hybrid [90 Bicheon/70 Ice, Fire, Light] *The last 3 can vary, just depends on your taste.
Pure Int/Hybrid [90 Heuksal/70 Ice, Fire, Light] *The last 3 can vary, just depends on your taste.
Pure Int [90 Heuksal, Light, & Ice]
Pure Int [90 Bicheon, Light, & Ice]
Str builds:
Pure Str Glavie: [90 Fire & Heuksal, 60 Ice & Light]
Pure Str Glavie: [90 Light, Heuksal, Ice]
Pure Str Blade: [90 Fire & Bicheon, 60 Ice & Light]
Bow: Haven't seen many bow, but mostly pure str or int.