"When they came, they brought with them an eternal darkness. We never saw the light again."
Item Dark Sky can be crafted on Forge tier V. You need 20 of Asmodeum, 15 of Runic Leather, 5 of Glittering Ebony, 1 of Empowered Counterbalance, 1 of Ancient Bearing, 4 of Tolvium, 2 of Scarhide. In results you get 1 of Dark Sky with 600 gearscore. For crafting required Weaponsmithing skill with level 200 or higher.