Drive from the priest.

I love priest/warlock because that combo can take out anything once you get improved voidwalker if you're careful about threat. (If you decide to try to solo dungeons make sure you lead from the priest and have fade on your main cooldown bar). I play my lock as destro and my priest as disc.


You might want to consider a "pull" key that has the following

Warlock:
/petattack

Priest:

/focus voidwalkersname
/cast [@focus] Power Word: Shield

That way (when you are going up agaist rough foes, like timeless isle elites), you're not actively healing or dpsing off the bat, give the voidwalker a few seconds to pick up aggro.

Unless you are pvping or taking on end raid content you probably won't be using warlock CC for anything. Maybe the felguards in Blood Furnace at level 62.