The Legend of the Black Armor

In the BrickHill kingdom there is a legend about a black armor possessed by the spirit of an evil knight, which appears in the king's castle and scares all the guards to leave the king defenseless, no one has been able to defeat him because his armor was made by the best blacksmith, however, when the blacksmith disappeared, a knight witnessed a terrifying event, but at the same time, he saw the legend end. After all, the blacksmith is a hero even when he ceases to exist.