A woman, nothing spectacular, even when brandishing a weapon and traveling the lands by herself without fear of brigands and cutpurses. She moves easily among crowds attracting little attention save for the markings on her skin, and is often seen as no real threat, But what kind of "proper" woman would mar her creamy skin with such images? Ancient, eldritch runes and symbols with forgotten meanings among the masses of the world. Perhaps if one knew what she was, it may help elucidate her choices. Perhaps.
Since time began it has been the human nature to seek power, and while the meanings are varied and many, it is usually because humans, in and of themselves, are not wholly powerful beings, surpassed by creatures like Vampires, Lycanthropes, even other, less menacing creatures like Elves and Fae, all of which can at least manipulate the arcane arts while we are left to watch and wonder, but not her. She has attained a level of understanding that few are willing to believe exists, a very simple principle: In order to gain, you must sacrifice.
She studies an inward-focused magical power state that it is possible for even the least talented to harness the ability to manipulate reality, however limited, and twist the threads of space and time to her whim. She cannot tap into the ley lines of the world, and call upon the natural magic like others, but through a process she is capable of harnessing something similar. This process happens when special plants, grown specifically over lines of this invisible energy network, are ground and made into inks, which are tattooed into the recipient's skin in a number of ways depending on the man or woman performing the ritual. Animals may be included so that the user can draw upon their powers, runic symbols of ancient beliefs are also popular, to draw upon the power of word and song, while even others go so far as to create elaborate murals over the person's entire body.
These tattoos absorb the radiant energy of the world around the user, and keep it at hand to be expelled quickly and violently through somatic or verbal components, allowing the very same uninteresting human to suddenly materialize a ball of flames or form the air around them into a tornado in some of the most extensive senses. Obviously, this woman is among their ranks, and as her sojourn continues, those who spot her report seeing more and more images appearing.
Sorry for waiting until the last minute to post this i've been busy.