Like Weapons, they have a tier system as well, with Greater Runestones providing a larger effect than it's regular and Lesser counterparts. You'll be able to find Runestones by defeating Enemies, in chests, or by asking a blacksmith to craft one if you have the correct diagram unlocked. There https://oaprendiz16161.goabroadblog.com/35871159/5-demonstrações-simples-sobre-thewitcher3-explicado