World of Warcraft Warlocks are a very good class to play with. Their extraordinary damage and survivability is very impressive. They have the ability to solo quests, which normally requires group. Their pets will give more control over their damage.

Also after level 20, a well played warlock will never run out of mana due to the effective use of life tap and other talents. Let's see the most effective talent build for a warlock.

Talents

This Warlock power leveling guide is to reveal the best available talent build for Warlock, it is really hard to choose the most effective one for WOW power leveling. But obviously a good talent build for WOW powerleveling is focusing on damage rather than defease.

So, in my opinion, the best talent tree is the Affliction. The primary intent of this build is to maximize your mana efficiency while keeping a really high DPS up. This will allow you to continue killing without stop. The first talent you should pick up, should be the Improved Corruption. Improved Soul Drain will help your mana efficiency, while Soul Siphon and Improved Life Drain will increase your overall effectiveness. Fel Concentration is one of the best talents in the Affliction tree, as it will allow you to 'drain-tank' your enemies.

You find a target, apply some DoT damage (Corruption,Curse of Agony etc.), Lifetap to regain the used mana, and Life Drain your target until its death. The next talents should be the Grim Reach and Nightfall. Siphon Life is yet another great talent, as it will help your damage and mana efficiency even more. By doing this you are doing WOW leveling very fast. Finally, at level 40, you will get the best talent in the affliction tree: the Dark Pact. This talent will allow you, to use your pet as a mana pool: you will be able to transfer your pet into mana. At this point, virtually, you will have unlimited mana!

Hope you will enjoy your Wotlk power leveling process with this help. Happy leveling!