>>81508678She needs to level up her major/minor skills 10 times before getting a character level up. When she levels up, she gets to improve some of her attributes. How much she can improve an attribute is dependent on how many times she leveled up skills of that attribute, INCLUDING miscellaneous skills. So if she gained 1 illusion, she'd be able to improve her Personality attribute more at her next level up, even though that 1 illusion didn't actually contribute to her level progress.
By the way, Fallout 1 is WAY simpler than all this fuck all of you 