Stygian Blade

The Stygian Blade (also known as Stygius, the Blade of the Underworld) is one of the Infernal Arms and is Zagreus's starting weapon in Hades.

Fighting style
Stygius is a longsword with a mixture of wide and directional swings. It balances speed and strength, with medium range attacks and an AoE special. The special creates a small burst but leaves Zagreus stationary for a short time.

Aspects
The Stygian Blade has 4 Aspects: Zagreus, Nemesis, Poseidon, and Arthur. Like all other weapons, each Aspect has 5 levels that can be unlocked by spending Titan Blood. The higher the level of the Aspect, the more effective its improvement is. Reaching the highest level in all Aspects requires 51 Titan Blood. An Aspect will not only change the appearance of the Stygian Blade, but will also improve its attacks. The Aspect of Arthur has a unique move-set which changes the fighting style of the Stygian Blade. * See below for Holy Excalibur's alternate moveset.

Revealing the Aspect of Arthur
Reveal the Aspect of Arthur by meeting the following requirements:
 * Reveal the Aspect of Guan Yu (does not need to be unlocked with Titan Blood)
 * Have a total of 5 or more invested into Blade aspects
 * Talk to Nyx until she gives you the waking-phrase ("I see your kingly pardon from a prison of stone")
 * Equip the Sword at the House and then interact with its placeholder to reveal the Aspect of Arthur