5e 13th level gestalt Rogue/Bard looking for a game
I have developed a few possible story tie in's (to explain his skill expertise) for this character if a GM was interested, but am open to just about anything at this point.
1) This character (a half-elf: hated by humans and elves alike and thus deemed a misfit) became a traveling circus performer (and thus fit in with all of the other 'circus misfits'). He would have learned things from members of all the different circus acts.
Other characters could be other members of this traveling circus. They could face adventures as they go from town to town performing...or war could break out putting an end to the circus and they band together to face the invading force, possibly employed or commissioned by the king.
2) This character is a king's court jester. As a bard he fits the role great, entertaining the king. And would learn history, arcane, religion, nature etc to entertain the king with a vast knowledge of facts. Athletics and Acrobatics for more physical representations of entertainment (juggling knives, tight rope walking, acrobatics, etc), performance (playing instruments and singing), sleight of hand and the use of the prestidigitation cantrip for parlor trick magic, etc. Things like deception, perception, intimidation he'd have learned from living in and among nobility.
The king could use him as an agent of the kingdom (along with other members of the campaign...possible characters: high ranking member of the church, high ranking member of the arcane order of the kingdom, high ranking officer in the kingdom's military, or any number of similarly important characters).