Netherworld Energy acts just like any other Estus Flask parallel; it recharges after you reset the world at a Blade Nexus, and can be made more effective through certain upgrades. However ...

Netherworld Aratra is an optional boss in The First Berserker: Khazan. Netherworld Aratra can drop the Man-Eating Spider Leg material which is used to craft the Devourer of Darkness set. This boss ...