Torug's Pact is part of the base game. The crafting stations are located in Grahtwood (Fisherman's Isle), Stormhaven (Hammerdeath Workshop), and Deshaan (Lake Hlaalu Retreat). You need to have at least 3 traits researched (per piece) to be able to craft this set. You can craft the set in any motif style that you know and you can trade the crafted item pieces. Each set item becomes bound on equip.