I noticed a cute trick a week ago that I had to share. Warlocks with a bit of Demo can sacrafice their Felpuppy for Mana return, then put up the Armour buff that regens health. This equates to huge mana and health return! I was farming the Elemental Plat for motes of fire and air, and had zero downtime. Zero….as destruction.
SB, SB, SB, ShadowFury. Deathcoil or Fear is something goes astray. That rocks! I know affliction can multimob farm, but I can drop 3 mobs in a sequence, faster than dot/dot/fearing them. 28 motes of fire, and 5 motes of air in 30 minutes.