You are such a bad, rouge that instead of actually using your wits you, rely on other peoples stupidity. This is probably one of the worst ideas you may come up with as a rouge, which allows to use the ability of the worst disguise.
The Literal WORST Disguise
You manage to wear something so outlandish and so dumb that It actually works... somehow. You manage to disguise wearing the most dumbest thing: a paper mask with someones face on it and it actually tricks people, if their not smart enough to fall for it
You can use this ability once per day to disguise yourself. Using this ability doesn't require a disguise kit at all but practically everyone has problems about this. When anyone that makes a investigation roll against you they instead roll a wisdom save and if they fail you succeed at all rolls correlating with that one person. However if you speak you have disadvantage and you have a advantage to hit anyone.
This Feat Can ONLY be used by rouge.