Sockninja Cosplay entered as Tarecgosa Though she didn't win, the image below shows how good her costume really was Photo by Jimmy Harris.
Blizzard has released the compilation of costumes below and there is a video of the whole costume contest at the bottom.
https://youtu.be/uOqN-LJ-nE4Video can't be loaded because JavaScript is disabled: BlizzCon 2016 Warcraft Cosplay Compilation[...]