This is the totally real and in no way connected to Aprils Fool's day item which players may receive from Blizzcon 2015. Only downside is it's only usable by the Warlord of Wowhead, Mistress
Edit: It seems like the upcoming Patch 6.2 introduces new PvP-Items. One of it, the 680 leather pants for Monks, seems to replace the fake funtoy "Path of Blizzcon" which was created for April Fools Day by the Wowhead staff. I'll keep this post for historical purposes here.