How do I get past immune to phisical enemies? I can't hurt them and even with add elemental dmg charms they are hardly hurt at all. Is there ANY way to kill these things without magic?
Berserk translates every point of damage you do to pure magical damage. Since there aren't many out there with magic resist, they had to make a hell of a drawback =D
berserk converts the damage to magical, so you will do no physical damage at all, but tons of magical damage.
No problems hitting phys. immunes with that one point will get you far.
Keep in mind though, that since the damage is only magical, you will not get any leech from berserk! might be handy to be prepared to drink some potions.
As an alternative, since you seem quite rich (botd-stuff and so), having azurewrath(s) as weapon switch and maybe a point in frenzy, you will tear phys.immunes apart in notime