[One can inject negative energy into it to increase its grade after the activation. The higher amount injected, the higher the potential of the wraith demon after mutation.]
Richard read the Black Gold System's prompt and immediately thought of Gray and Gunter. These two were A-rank mummy heroes. The birth of these two heroes was quite similar to it.
He couldn't help but feel great.
The Black Gold System was the eternal god!
The information provided was irreplaceable.
He regained his senses, and he took a deep look at the dark stone statue.
This mission was extremely arduous, and the reward was indeed very impressive.
However, it would not be enough to activate the remaining stone statues if he invested all his resources into the dark stone statues.
Richard pondered and turned to look at Popov, the level 19 hero.
"Patriarch Popov, this dark stone statue contains a supremely mighty soul. It could help us if we activate it."
