By the time he reaches his nine-hundreds, Taz'riel will begin to mature. That is, between the years ~130-900 he can be considered more or less an adolescent taking into consideration how his particular branch of his family grows.
Maturation comes with the following perks:
✚ Thicc'er thighs.
✚ Wider hips.
✚ Longer fingers.
✚ The ability to control his hair / prehensile hair.
✚ Stronger hair tensile strength.
The hair-y abilities would have developed much sooner if it weren't for the incident in his childhood that f***ed up his ability to wield new magic. As it's innate for his branch of the family, however, he eventually obtains the skill.