Originally Posted by
Teriz
Actually Witchdoctors and Shadow Hunters are part of the Shaman class. Blizzard utilized both concepts when they created the Shaman class in vanilla, and the Shaman class houses the vast majority of their WC3 abilities (Sentry ward/totem, Healing Ward/totem, Hex, Healing Wave, and Searing Totem/Serpent Ward). Trolls, along with Orcs and Tauren, are the core Shaman races. Nearly all of the Shaman abilities originate from Orc, Troll, and Tauren shamanistic units and heroes from WC3.
Actually BE Paladins are Blood Knights, and they learned to use the light by draining power from a captured Naaru. That falls well in line with their racial culture. Demon Hunter BEs originate from TBC, but their history comes from WC3. Again, they have a shared history with Illidan, so DHs fit in just fine with the BE class culture.
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According to the leak, Naga have the ability to turn into elves out of combat.