Obsidian

Obsidian quality items are the rarest forms of loot in ZTV: Invasion. They only drop from the toughest of enemies.

In ZTV:I
Obsidian items are the rarest items in the game. They are incredibly powerful, and therefore incredibly difficult to obtain. Obsidian items only drop from raid bosses, including Graverobber, Desmodus, Kingpin, Hades, and Rakshasa. For every type of item, there is one Obsidian item, ie 1 Obsidian Sniper Rifle, 1 Obsidian Pistol, etc. They can drop during any playthrough, but only after beating the campaign of either the main game or any DLC.

Below are the only legitimate Obsidian items in the game:

Trivia

 * Obsidian is a type of glass that is formed when lava cools incredibly quickly. It is considered a volcanic glass.