What is the obsidian level of the demon god?

Black gold level of the strong. The Story of the Devil God tells the story of a demon world. People can get the demon spirit by hunting the monster beast, and integrate it into the sea of souls, thus gaining great power. There are five grades in it: bronze, silver, gold, black gold and legend. The higher the level, the stronger the strength, and its black Yao level represents the strong black gold level.