The Witch Doctor is a true pet class in Diablo III with access to various kinds of summon and can act as a shield for them with these pets.
As long as you know enough bonus experience points for repeating mid-act and end-act boss quests, Witch Doctor leveling up is never a problem. Then the question is how to earn the most experience points?
Firstly, I suggest you guys fight monsters around your level. If your D3 account is not leveled by your friend, you can just pick the mi-act or end-act boss quest in your level range and you can gain fast kills by repeating fighting with monsters whose levels are similar to your levels.
Or you can remain in the recommended difficulty modes for the following levels, Normal from 1-30ish, Nightmare from 30ish-50ish, and Hell from 50-60. Once you earn much xp for questions and killing enemies, you can fight the hard monsters soon. If you don’t belong to any arranged team, it is also okay to use this method. However, if you have a friend level for you, you can focus on faster kills.
Then you may wonder which skills should be chosen for a Witch Doctor?
I suggest you choose, Soul Harvest, Gargantuan, Summon Zombie Dogs, and Splinters rune as your basic skills. Soul Harvest can literally double your damage, pets are useful for defense, and Poison Dart eliminate enemies.
There are various kinds of buffs for best Witch Doctor skills which can make your outstanding from other four classes. You can make the most use of Harvest as it provides so magnitude intelligence for Witch Doctor. WD benefits more from damage-increasing stats such as increased attack speed. Skills for Witch Skills need certain stats for increased attack speed. For instance, Grasp of the Dead can deal 20% weapon damage for eight seconds. If you have weapons that can attack twice per second, an additional 20% weapon damage will be given for every half second. Zombie Dogs attack once each second except for off attack speed and can deal 9% weapon damage. Then if you want to be elite among Witch Doctor in Diablo 3, you can buy cheap Diablo 3 gold for sale for best Diablo 3 items buy. You can use these Diablo 3 items for purchasing slow weapons which can give more benefits for pets and spells which can used for damage dealing.
Then speaking of Poison Dart with Splinters rune, pets don’t deal much damage by Poison Dart. Despite, you can do better with slower weapons when all other equipment is equal. Or you can use the faster weapons when they can do 10% DPS or more.
In summary, completing as many as boss quests can help you level fast and effectively. Selecting slow weapons is the key for damage dealing. Using the builds outlined can make you more likely level all skills as Diablo 3 Witch Doctor. With this game, you can easily reach level 60 in Diablo 3.