Disadvantage: Unstealthy

The character for one form or another has disadvantage on their stealth checks,  this is usually done as a flavor for characters with appearances or some form of background that makes sense for them to have disadvantage on these checks, examples could be glowing body parts, visual auras, or something within their character or personality that just makes stealth difficult.

I made this feat just to give disadvantage to my fae with glowing wings, but it can be used by others for similar reasons, it's fun to have character flaws and flare's that make certain things harder for them.  This can also be used if your DM is one that lets you take disadvantages for additional feats or magic items or the like, but that's entirely up to your DM.