Bloodline
Appearance
Each set of wings are different depending on elemental affinity, personality, genetic traits, and needs upon activation
But know matter what they always give an air affinity a user can potentially grow 4 piers of wings the higher the higher the number the stronger they are along with growing in power the wing transform and gain new powers
Abilities
Each wing has unique abilities and skills based on the above perimeters so it is hard to predict