Weapon aspects fundamentally change how you use each Nocturnal Arm in Hades 2. Each Nocturnal Arm has three weapon aspects that will adjust your moves, give you buffs, and, ultimately, change your playstyle. Here are all of the weapon aspects in Hades 2. How to unlock weapon aspects in Hades 2To unlock weapon aspects, you'll need to complete the "Aspects of Night and Darkness" incantation at the Cauldron. All weapon aspects in Hades 2There are six different Nocturnal Arms in Hades 2 and each weapon has four aspects — three unlocked with the "Aspects of Night and Darkness" incantation and one hidden aspect.