Obsidian Forge

is a Crafting Station located at the very bottom of the Hilt Fortress. is the only Crafting Station that will allow you to make the Vermillion Lens or Obsidian Ingot and Obsidian Armor and Weapons.
 * You can only craft the Vermillion Lens when you have the quest Reassemble and Use the Vermillion Lens and enter the door to Hilt Fortress that is labeled [This door can only be used for "Reassemble the Vermillion Lens" quest] in Nightshade Pass. You cannot craft anything else on the.
 * You can only craft Obsidian Ingots, Obsidian Armor and Obsidian Weapons when you enter the door to Hilt Fortress that is labeled [This door cannot be used for "Reassemble the Vermillion Lens" quest] in Nightshade Pass. You cannot craft anything else on the.
 * While in this scene, each time you click on the and open the Crafting Window, a Wave Battle will spawn consisting of Fire Elemental and Obsidian Golem creatures.

Trivia
Hilt Fortress: The Obsidian Forge is now functioning but beware; for not only does it drain the user’s life and focus, but it also draws the attention of ever increasing waves of enemies (much like a Control Point).