Draugr Hulk is a medium armor set. Every set bonus (2-5) gives you extra Stamina, with the 5-piece bonus adding 2540 Maximum Stamina.
The Draugr Hulk set is part of the base game. It drops in Direfrost Keep in Eastmarch. Each set item is bound on pickup. You can acquire medium armor, weapons and jewelry of this set in the Draugr motif style.