Er, she wouldn't do anything against cold immunes, what with them being cold immune and all.
If you also have a non-cold skill, that could be used to damage them. But then it's that alternate skill that matters, not the frozen orb. You should still have some points left over to invest in such a skill. Plenty of them are viable.
If you also have a non-cold skill, that could be used to damage them. But then it's that alternate skill that matters, not the frozen orb. You should still have some points left over to invest in such a skill. Plenty of them are viable.