Anyone know if the Legendary +15 critical dmg from lets say the Deacon of the Auricular Sacrarium set or the Legendary Elder's Knowledge set (only 1 on as they won't stack with each other) stack with a four piece material set from LGS items? Let's say I have enough augments to give me 17% spell crit damage from the LGS material set. Would that be 17+15 or just the higher of the 2 so only 17%?