Please, share your experience and knowledge also give ur own opinion..
Need your advise guys..
Active Skills that may be I take for my end lvl mage:
- Shield
- Clock
- Lightning
- _______ << should I take fireball or ice?
- I don't see curse in elite maps anymore since many mage use it for PvP

And in harder elite maps such as shuyal, nordr, and tindirin,
Does fireball (charged skill) can stunt elite mobs and elite bosses? Can Ice (charged skill) freeze elite mobs and elite bosses?
If can't, why? So curse more better than fireball and ice for harder elite maps?

Sorry many question, every comment very helpful to me ^^
Thanks!!