Here we are willing to talk about the Warlock PVP techniques. Maybe most of the players who do not know how to make use of this technique, or others have great interest in this. As a result, we avail ourselves of this golden opportunity to make mention of this topic in detail. The detailed information we think will benefit for you in the long run. Now you should pay more attention to the following information.
   In player versus player, the Warlocks have difficult time at one time because of the way that most enemies won't bother attacking your pet, and will instead make a beeline straight for you. Here your saving grace is going to be the Fear spell; you'll want to cast it often to keep melee opponents off of you, but keep in mind that it will become more easily resistible after each casting, so that eventually it won't affect your target at all. Thus, you'll want to take full advantage of the first couple of castings by laying all of your DoT's and damaging spells on the target, or just taking the opportunity to run if you don't think you can win the fight
   Eventually, the said, your target will start resisting your Fears, so you'll need to get all of your hits in before this occurs. If necessary, you can keep your pet trained on your enemy and make sure that they're using all of their special abilities to deal extra damage. When you're facing off against lower-level enemies, then Corruption, Curse of Agony, and Immolation can usually deal enough damage to kill them off by themselves, but vice versa, when you are facing off against higher-level enemies that are strong enough to withstand your DoTs, or whom have healing spells to regain their life, you're going to have to get as much damage in before your Fears wear off and hope that you've hurt them enough to either make them easy to finish off or to convince them that running away is a useful option.
   In part, we attach importance to the group PvP. At most, Warlocks aren't highly desired in group PVP, but if you know how to play your class well, then you should be able to contribute a lot of damage. You're going to be useful against the powerful tanks on the other side, if you can get close enough to them to bust out your Curses and DoT effects. You can follow these by busting out Rain of Fire and casting it on the primary area of combat to aggravate any enemies within the area of effect.
Though any enemies you meet will be smart enough to realize that they can kill two birds with one stone, since killing you will also make your pet disappear. By this reason, you're going to want to stay back behind your tanks and use Fear to keep enemies off you; casting Fear on enemy tanks will only make it more difficult for your own melee character friends to kill them off. If you can get close to an enemy spellcaster, though, you should do your best to cast Curse of Tongues on all of them; it can be easily eliminated by mages, and they usually will, but priests don't have any way to get rid of curses, so they'll be forced to deal with a 60% slower casting time for almost all of their spells for the duration, which should reduce the overall efficacy of your enemy's healing.