Prime phantom Prism II and III Infantry spectre Tethered Realms Galleria Altitude Artisan (best battlepass set fr) Wasteland vandal
Any others?
Wasteland vandal is not a "forgotten skin"
The og goat Rush Phantom
Sakura Vandal
singluarity
oh I forgot this one, the sheriff is still pretty common tho also the red ares is so underrated but no one buys ares anymore
singularity phantom
Horizon skin line. I don't think that I have ever seen anyone using Hoizon skin. I own the Vandal and remember someone saying how they had never seen it before lol. Unless you mean skins that were popular but no more.
The realest forgotten skin is Nebula Phantom