My mystic (110) has Resolve armor is 60 or better, but she keeps getting her butt kicked in the "Light among Shadows: The Vault of Omens", where as my Necros and Shadowknights have no problems. Any tips? Thanks.
Without being able to see your character, your statement about resolve is a little unclear. Are you saying your armor has generally 60 resolve? (I'm guessing the Bold Crusade armor from the panda?) Go to The Blinding (the resolve on those pieces is 145) and get all the gear from the chest you can and replace everything. That might help.