resistence help

hello all.

i was wondering if anyone know a good way to bring my resistances up fast.

my zon right now is level 84 and in a hell game im still in the negitive, and i want to do pindlebot runs but most of the time pindle has lightning attack.

i know i can use charms to dring it up but i was wondering if there is something else i can use. (like skill points or something)