The character flaw in Ember's case isn't the penalty to rolls, it's how her designed build doesn't fit her personality. She is a child-like character who preaches peace & forgivness, and yet in combat turns enemies to cinders screaming "too late for apologies". She would have made more sense with a patron that grants healing or protective spells instead of hellfire rays.
Haha, true.
However, she totally fries anything in her path, it's hilarious.
