Well let's take a look shall we?
Brewmaster abilities WC3 and their WoW equivalent:
Breath of Fire >>>> Breath of Fire
Drunken Haze >>>>> Drunken Haze
Drunken Brawler >>>>> Elusive Brawler
Storm Earth Fire >>>>> Storm Earth Fire
Dark Ranger abilities WC3 and their WoW equivalent:
Silence >>>>> Silence
Black Arrow >>>>>> Black Arrow
Drain Life >>>>> Drain Life
Naga Sea Witch abilities WC3 and their WoW equivalent:
Mana Shield >>>> Mana Shield
Forked Lightning >>>>> Forked Lightning
Frost Arrow >>>>> Frost Arrow (NPC)
Pit Lord abilities WC3 and their WoW equivalent:
Rain of Fire >>>> Rain of Fire
Howl of Terror>>>> Howl of Terror
Doom >>>>> Doom
And then we have the Tinker (per you and @
Darktbs' arguments)
Tinker abilities WC3 and their WoW equivalent:
Pocket Factory >>>>>> Goblin Bomb Dispenser
Cluster Rockets >>>>>> Goblin Mortar
Engineering Upgrade >>>>> Various Engineering enchants
Robo-Goblin >>>>>> Sky Golem