I recently started playing my 43 warlock again after a very long absense. I realized I stopped playing her because I just didn't know which spells to use. And that hasn't gotten any better this time around. I thought maybe someone here could help me figure it out! She is demonology, and I tend to use my VW when I solo. I hit the mob with a corruption, curse of agony and immolate (not necessarily in that order) after I send my VW to take aggro. Then I'm just not sure which spell to use. If I use searing pain, I tend to draw aggro away from my VW, but if I use Shadow bolt, it tends to use too much mana, and takes way to long to cast. After killing the mob, I find I am at least half out of mana or a little over half so I life tap a little to get back up and hit the next mob with drain life to get my life back. So, what's the best way to kill a mob so that you aren't constantly out of mana?