[Weblock]

If you want to continue using your VW you might try putting some points in Demonic. Specifically in "Improved Voidwalker" & "Fel Stamina". "Improved Voidwalker" increases you VW's Torment so more threat is generated and "Fel Stamina" gives it a bit more health as your VW will now hold aggro and get hit more. How you fill in the rest to get there is up to you and your tastes. "Improved Health Funnel" will let you top up your bluies health faster and cheaper.

I'm deep into affliction and I like using my VW for a tank during the week when I don't raid. It's great for farming too. I never have to stop and eat or drink. DoT, Life Tap, Drain Life - Loot. Heal the bluie when needed. If my HP and mana get unbalanced I pop a healthstone and keep going.