The entire Dark Magician strategy is just to play with your hand. It doesn't have an exact "combo", but usually you want to Normal Summon Rod, and somehow get Dark Magical Circle in your hand, and usually you want to get either Magician's Navigation or Eternal Soul, a Dark Magician in your hand, and then use it as response. The Apprentice Illusion will help with boosting your monsters' attack, and searching Dark Magician directly. Really, for a rogue deck, the deck isn't bad. But it is most of the time very fragile. Once the deck can really get going, you can easily put 5-6 monsters on the field in one turn and smack your opponent for more than game.