This is a recolor of the tier 8 hunter set. Out of the 4 colors available (red, blue, green, black) I definitely think this one takes the cake. Unfortunately, for whatever reason, Blizzard did not add the black version of the helm to the game. I couldn’t find a good match in my transmog collection, so I defaulted to my trusty eye patch, which goes with everything!
This armor itself is acquired mostly in 10-player Ulduar (only 1 hard mode) and is soloable by any level 90 hunter. The only one that you may need some help on is with Thorim. You need to… get creative… in order to do this by yourself. You can bring a friend to help, or check out Darkbrew’s video on how to do it here. Thorim will be made “officially” soloable in patch 6.0, but that is still a while off. The other bosses you need are straight forward burns, except you should be cautious with Freya. If you kill her too fast, she won’t spawn her chest and you won’t get any loot. Some of Mimiron’s abilities in hard mode can still hurt you, so don’t faceroll it too much.