Essentially, I want to gain expertise in 2 skills but without having to take a level in Rogue (Or several in Bard)
There are already feats to gain proficiency in various skills/weapons, but I can't find anything (apart from a human-only from Xanathar's guide) that grants you the double proficiency.
So I figure making this a feat could work. But, I fear my lack of experience in home brewing things means this could be under/overpowered.
Is 2x proficiency on 2 skills OP? Bearing in mind this is instead of a stat boost - which would give a +1 to all skills in a category, whereas I want to be extra at something specific.