Are you serious with those secrets? Mass Confusion is way over the top and can wipe all enemy minions at once. Spirit Vessel is a combination of Ice Block and Ice Barrier, although you hero won't be immune. Still way over the top. And Wall of Zombies is even better than Snake Trap.
This secrests cost 4 mana, so it must be more powerful, then mage or hunter secrets
Overall decent work. I also had this Class Concept in mind. The Witch Doctor in Warcraft is all about Poisons, Herbs and Insects. They can control lesser beings and summon Wards, similar to Totems, no Haunds (this is maybe more form Diablo).
The minions seem balanced, besides the Zombie Charger, compare him to Reckless Rocketeer.
The Spells are weird. I miss here the Poison, Vodoo, Control Stuff. It seems that you adopted a lot from Diablo and not from Warcraft, the Witch Doctor in Warcraft is diffrent.
The Sectres, like already mentioned, are way to strong. I would suggest that you read something about the Witch Doctor, there are a lot of famous ones in the Warcraft Universe, so you can use one as the Hero (a Hero without a Name is not a Hero) and can create better Cards, wich would fit more into Hearthstone (Heroes of Warcraft).
obv, it's just fun diablo witchdoctor concept, i didn't even know about witch doctor in warcraft.
and about zombie chager, i am actually disagreed, cause you cant compare class card to neutral and closest class card is Druid of the Claw in catform and cause of Choose one option it is little weaker, than possible, so i feel 5/4 with Charge is fair
Hero Power:
Minions
Spells
Secrets:
Weapons
Yeah, i know, some of them are overpowered, but some of them i really tried to balanced
I don't especially like the hero power. It's strictly better than shaman and paladin's hero powers, and the rabid dog's RNG is way too impactful.
This secrests cost 4 mana, so it must be more powerful, then mage or hunter secrets
obv, it's just fun diablo witchdoctor concept, i didn't even know about witch doctor in warcraft.
and about zombie chager, i am actually disagreed, cause you cant compare class card to neutral and closest class card is Druid of the Claw in catform and cause of Choose one option it is little weaker, than possible, so i feel 5/4 with Charge is fair