So, I've been just kind of skimming along for what I've just discovered in the new DLC... haven't seen anything of it yet here on the wiki, so I thought I'd give a heads up...
(semi-spoilers, don't read on if you want to experience it all first-hand) - There is a new unique armor set called 'Deathbrand'.. it is apart of a side questline that's, in a way, like Knights of the Nine in Oblivion... you discover one piece of the full set one by one. I just randomly trampled onto 'Deathbrand Helm' while wandering around, and it began the questline. Deathbrand Helm specifically gives the Water Breathing ability, and +100 Armor Rating if the full set is being worn (this obviously is apart of each piece.) If my observation is correct, it is all basically just a 'lost' set of unique enchanted Stalhrim Armor. There are no articles or anything on it, so I just thought I'd bring it to attention here.
Incorrect Console CommandEdit
The Console Command for the Bonemold Guard Armor is supposed to be:
xx03AB25, which is Bonemold Boots.