Made a new 4 warlock, 1 priest team. Using the healer and tank from my previous team I leveled to 60 to boost them in dungeons. Not really efficient for me before hitting 30 with warlocks. Would be a lot better with mages.

Basically, I'm running through the instance, and pulling all the mobs I can with my druid(tank from previous team). When I got them all grouped up, I spam demo roar to build threat, and heal myself a bit with the 60 priest. After 10-12 demo roars, I leave the raid with the two 60s, and I AOE them down with the warlocks. Important that you dont do any dmg to the mobs with the 60s while in group.

They get full xp this way, even though there are 7 characters in the dungeon. Been getting 80k xp/h while rotating library/armory.