[@Transience]: Are there any limitations to what characters are capable of? Like, powers, strengths, weaknesses?

Furthermore, would I be allowed to make a bard-like adventurer character, who has more power in wit than in ability but can learn how to do a variety of things and who came from a time when, under the god of wisdom that he devoted himself to, he united a variety of kingdoms into an empire? Or would that be too farfetched and overpowered of him?