As you may know there is a great place to farm relics of ulduar that place is the inventors libary in storm peaks (40,41)where Library Guardians are located. These ppl make for great grinding because they do not have any ranged attacks which makes it easier to gather them up. But wait theres more with patch 3.10 there is a new daily located here A Chip Off the Ulduar Block from the argent tournament, and upon recieving the quest you get Goblin Chise which is bascally a bomb. So my idea is gather a shitload of these guys plant the bomb make sure most of the mobs are standing near it and bam most are almost dead or already dead.
So in short
Step one- Get the quest A Chip Off the Ulduar Block from the argent tournament
Step two- Fly to the inventors libary (40,41) in storm peaks
Step three- Try to find a bunch of mobs near the blocks your are to blow up
Step four- Gather the mobs and pull them to the block
Step five- Blow them up with Goblin Chisel
Step six - Loot
There you have it a more effective way of grinding these mobs down more usefull to a non aoe class