You don't have a lot of options with an IL 8 and no martial adept classes. It'll be hard to qualify for many maneuvers because you won't meet the prereqs, but there are a couple in shadow hand that you might like:
Shadow Jaunt - 50ft standard action teleport that requires line of sight and line of effect.
Cloak of Deception - A swift action boost that lets you turn invisible as if you had cast greater invisibility for one round.
There were a couple of ability score affecting strikes as well, but their DCs were keyed off of wisdom.
I might adjust that, considering I have access to the Book of Vile Darkness, so I might add on Disciple of Asmodeus to continually exploit my high Charisma and have more damage to my smite good attacks. Since also added the Hexbands, I can pretty much kill something good aligned. too bad I can't get Celestial Slayer