- put 3 points into Warlock tree (improved void bolt - which is going to be one of your primary damage spells)
- rest into necro tree (Soul Purge is what you want first)
Before you get Soul Purge and later on it is also nice to have 5 points in Ele for the +5% crit chance
Later on you want to have Ancient Tomb from the necro tree for the rogue pet and Clatering bones to boost the pet damage. After that keep putting points into the warlock tree.
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