Unlike regular Kosmowings which have the ability to transmute matter and Duskwalk, Shadowwalkers(wings) are an offshoot of the tribe with two sub-categories. one can control shadows, and enter the realm of shade. some have sentient shadows as well, though this is rare.
the other sub-category, have the power to see into all possible realities, and sometimes the rare ability to travel between dimensions. most dimension hopping ShadowWalkers have both of these abilities.
Shadowwalkers look similar to Nightwings, but also share most Kosmowing attributes. but a select few have lost the ability to glow altogether.