Hades. I tried to make the symbol look hellish because Hades is the God of the underworld, which means hell.

The symbol of Hades I drew is down below. I drew this symbol because Hades was the God of the underworld, meaning that he controlled the dead. So I drew a skull

with a circle around it with an eye above with chains on each side. The skull also has an H on the forehead which stands for