Question: where are the pvp vendors in legion?
Answer: FAQ 3: Where are the Alliance PvP vendors? You can come across these NPCs in Stormwing, Tanaris, Dalaran, and Netherstorm. FAQ 4: Where are the Horde PvP vendors? In Horde, you can either go-between Ogrimmar, Tanaris, Dalaran, and Netherstorm.