2 skills proficiency of your choice, 1 language proficiency, and 1 tool proficiency. The background feature is called "Bright Mutation", basically due to the curse in the land prior to your physical death, you all had some strange mutation that grants you an unusual ability. It can be combat related, such as having grown long arms for greater range or wings to fly away and dodge enemies, or more utility like such as being able to smell magic items in the air or create a shelter to rest. Within limits or course, so it'll be a case by case.