Should've mentioned Skellos Master Armor. Until you get the Ranger set, it's the best armor for Agility builds (and the best armor for PvE in general, since it also boosts Thrall damage). A lot of people don't know you can learn the recipe earlier without going to the Volcano, just by killing T3/T4 Sorcerers. Also the Ranger armor, of course, but that one the game already tells you how to get it (and shows you the middle finger for how unnecessarily hard it is to get).