Concept: A 'anime' style fighter, using magic and weapons in tandem, but with a focus on powerful spell casting, uses magic for things other than blasting exclusively.
Detailed concept Information: Matthew fights with style, he uses magic and his Katana together. He performs amazing feats thanks to his magic, and he likes to mix up his spell casting a bit, he prefers to use magic first and fight with his sword when necessary. Uses his sword as a focus for his more direct magic, is generally flashy with his magic no matter the type. He uses a variety of tricks, even if his total bag is small (ex: Jumping higher, being faster, protection, illusion, battlefield control, etc...) if he were a D20 sorcerer, he'd have several different types of spells known, not just blasts.
Detailed History and Background: Matthew has never felt at home anywhere thanks to his dual-heritage. The elves hated him for his humanity, and while the humans were more accepting, many felt threatened by things they perceived as conceitedness and pride. He wandered the countryside, teaching himself magic, but because he had to rely on himself he learned how to channel his magic through his Katana (a family heirloom from his elven mother's side). He has learned to accept his nomadic lifestyle and is quite pleased with it, he joins other people who need help, or who are willing to travel with him, but he doesn't like to stay in one place for too long. He's fairly open and doesn't brood too much, he's accepted that not everyone wants him around and has learned to live with it, not much keeps him down for long.