You need poison. Get rid of swords and put either fencing or macing. If you're gonna be a dexxer, you probably want parry too.

Being just a straight healing dexxer with poison is solid. Hard to kill people in the field sometimes, especially with all the speeding going on, but it can work.

You could always try the macer necro which is going to be really popular soon. Necro is the way to go after this patch.