subject: Rohan Guide for Multi Class [print this page] Third on one list of items to look at are base attack bonuses and saving throws. There are certain levels when taking a level of a class is less useful because one does not get a save or base attack bonus. A wizard does not gain saving throws at levels 5 or 7, so it is better to switch class from wizard at levels 1-4, 6 or after 7, when considering saving throws.