It can be upgraded to a Refined Anima Core equipment of Zaros using 1-3 of each of Serenic, Sliskean, Zamorakian, and Zarosian essences for each piece of the armour, after the ability to craft Refined Anima Core of Zaros armour has been unlocked by earning 2,000 Zarosian reputation. Note that to create the refined version it requires 1 of each for the helm, 2 of each for the legs and 3 of each for the body.