It's one part win trading, one part player immaturity, and one part Blizz's ongoing fetish for 'muh fakshun tenshunz.'

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Quote Originally Posted by Grythletubs View Post
So can void elves and blood elves
Pandaren had their faction languages replaced with the factionless Pandaren in Legion, too. Or, more accurately, now when you pick a faction your pandaren doesn't lose their initial language, you just gain Common/Orcish.