Intrinsic skills 「固有能力, koyū sukiru」 are skills inherent to the physiology of the user, typically obtained from birth or through evolution.
These skills can be broadly split into three different categories, these being species-specific intrinsic skills 「種族固有能力, shuzoku koyū sukiru」, bloodline-specific intrinsic skills, and individual-specific intrinsic skills. They usually take the form of common, extra, and resist skills, but in rare instances, unique skills or even the equivalent of ultimate skills are possible.