As you can see this vessel DOES glows. That is because it is a lurking demon who just wants to harm people very slowly. Again experienced only! This demon is a Yan-gant-y-tan. When an enemy meets him it's the instant omen for death period. The thing with this demon is he lurks at night and enters in the home while asleep. He is known for his hand of flames and wakes them up with these flames by burning them. He will drive fear into them and pin they have never felt. This demon will return night after night for his victim. On contrary to his owner he will use his light to when there's is out (energy, mind)and set a new path for them giving them inhumane powers to defeat anyone. He wanders his victims life very often to be aware of every detail about them. He knows also about anyone close to the victims being family, children, parents, you name it. This demon stays the straight line to where you send him and will not get off track. Make sure you send him where needed.