The transmog helm
黑暗游侠的兜帽 can be obtained in the Hunter class hall after completing a short questline.
Step One: Speak to
死亡猎手莫戈斯 and buy 13
黑玫瑰s from him.
Step Two: Afterwards, find
黑暗游侠维罗娜拉, give her the roses, and then return to
死亡猎手莫戈斯.
Next time you see
黑暗游侠维罗娜拉, take the quest
黑暗信物 and follow it back to
死亡猎手莫戈斯 who will then have
黑暗游侠的兜帽 for sale!