The shaman transforms herself into another form, as per alter self, for a number of minutes per day equal to her level. This duration does not need to be consecutive, but it must be spent in 1-minute increments. Changing form (including changing back) is a standard action that doesn't provoke an attack of opportunity. At 8th level, this hex works as beast shape i. At 12th level, this hex works as beast shape ii. At 16th level, this hex works as beast shape iii. At 20th level, this hex works as beast shape iv.