Use Spirit Bomb as your damage ability, it hits very hard with 4-5 balls. Follow it up with a zero ball Soul Cleave. Fracture and Immolation Aura to generate resources.
Keep in mind you also have a fear, silence, stun (Illidan’s grasp, talent), kick, and a cyclone (Imprison, with talent). Your toolkit is fully capable of killing most classes, including the very difficult ones with stuns – rogues, paladins and destruction warlocks.
Retribution paladins can only kill me if they significantly outgear me by 40 item levels or outlevel me by 4-5 levels.