Try the Repairman Jack series by F. Paul Wilson. Repairman Jack is sort of like the Equalizer, but there is a supernatural twist...it seems he is some sort of Guardian who is one of the last ones left who can prevent the dark forces from taking over and destroying us all....only he doesn't know it.
Then try the Codex Alera by Jim Butcher. It's about a boy named Tavi, who lives in a world where everyone bonds with the various natural spirits of the world, and is able to use the powers of air, fire, water, and earth....all except Tavi, who has no powers at all. Eventually, it is discovered that Tavi, unbeknownst to himself, is the only living heir of the Emperor.