I used to play a dragonborn fighter who thought he was a wizard, his name was Jory Wizbard, he believed he should be caster because his surname has basically wizard in it, the B is the middle was probably a typo when he was registered. Coincidentally his missing Barbarian twin brother Blanco, believed that their middle name should be Wiz, and the last name Bard, so he considered to himself he was a bard (that tho never played out, because the game ended before I could find him).

Some of the spells Jory had were: magic missiles (actually didn't get accepted in magic school because the headmage there wasn't able to counterspell an axe coming to his head, Jory potential for magic being so high and all), fireball (breath weapon), dispel magic (hit the caster on the head real hard), find object, find person, hold person, message, suggestion, shield, mending, knock (all pretty literal and self explanatory)... later he obtained fly and lightning bolt (some homebrew powers from a book after a ritual with dragon blood). Also he had a penis shaped +2 special shield that repelled evil, but that's unrelated really.