According to Blizzard Lead Designer known as Tom Chilton (thanks Noggyh for info), Nether Drake Flying Mount wont be easy neither fast to get.

• 关键的话其实就1句：获取这个坐骑既费时又费力，需要在一个为期三个月的竞技场赛季获得最高排位，其他都是废话，对竞技场系统作补充说明而已。