Classic might be a better fit (and very fun). Mutilate rogue on classic is strong and the rotation can probably be done on one hand.
For retail raiding, destro lock might be the closest, or maybe disc priest if you only bind Radiance → mindbender → smite x 13 (with current tier set) and repeat. If you can also fit penance in there that would be even better
Update: I made a four button disc build with this thread in mind