I run a 1x Priest (main) and 4x Warlock team, currently lvl24.

I am trying to keep my setup as simple as possible. I use Healbot on my main which removes the need of placing heal spells in my action bars for the Priest, freeing them all up for my Locks. Typical fight goes as follows...

Select mob with Priest, set all Locks to assist, send in Void Walkers, fire off my DOTs (Corruption & Curse of Agony... if mob is really tough, Ill throw in Immolate). After waiting a little bit for VWs to build aggro, Ill start wanding with locks... Priest stays idle for fast heal casts. If VWs start to get low, click on bars in Healbot and we're back in business.

On squishy mobs, ill skip the wands and move from target to target sending in VWs for aggro, DOTing then moving on.

I could probably add some damage spells from Priest to cast when I trigger a Lock DOT, but so far I havent found a need. Plus, I like having her readily available to cast heals on demand.

I hope that all made sense. Like I said, Im only lvl24 and still feel like Im discovering better, more efficient ways of fighting... so far the above is what works best in most scenarios.

I'd love some tips or advice if anyone has suggestions on how i could do better.