Otherwise you are making the illusion more effective because of your perform skill and magic in D&D doesn't work that way.
Crothian said:Yes, they could. I'd be tempted to create a new core class for them, though. I wouldn't want them to have any real magic or any of the sneak attacks nad other rogue abilities. As a vocabulary note I'd call them Stage Magicians, as Magicians havea completely different meaning in the worlds of fantasy and Magic.