Marsh was a relatively irresponsible young man living in a town with it's very own legend. An old rather rusted blade drove into a heavy white stone in the center of town. Legend had it that only a True Hero could rest it from its rocky sheath. Many pilgrims and tourists would make the journey to test themselves and their heroism, alas none were successful.
When the town was the target of a raid from a band of brigands, Marsh found himself at the end of a bandits weapon and his back against the stone. On pure instinct and in a panic he reached behind him and found the battered hilt and heard the words that would change his life, "Oooh, finally one who isn't such a goody two shoes. And you're in a desperate situation. Wanna make a Deal?"
A bit hotheaded, Not particualrly smart or clever.
A good man at heart but never expected to be a hero.
Uses his newfound powers to help when he can, be that others..... or himself.