This is who King Scratch was before being banished to Helheim. He was once the ruler of The Celestial Kingdom until a war broke out between him and Yurva. In the aftermath, Yurva was the new ruler and Heylel was violently banished to Helheim. There, Heylel took on a his new identity as King Scratch, and thus, became the ruler of Sheol kingdom in Helheim.