Warlock build for a duo with a priest

[TheDragoon]

One idea that I think could be interesting is to go the Demonologist route with your warlock. That will give you more powerful pets and the ability to summon them more quickly and efficiently. In addition, Demonology gives ways to reduce the threat against you or increase your damage by 10%. If you could get the priest to lay off the mind blasts and use mind flay, instead, the Voidwalker or Succubus could probably do an ok job tanking for you guys.

To that end, either this or this build would be a possibility. I'm not sure this will do better than a Shadow Mastery/Ruin build for you when duoing with a Shadow Priest, but it would certainly be a more interesting and less-used road to take the Warlock.