The Devil's Hand was originally a range of five mountains in the shape of a grasping demonic claw. The surrounding land was seemingly often covered in fog. Lucifer, Igor, Ghastel, and many other demons lived there, inside the Devil's Castle.
After Lucifer's death, three of the mountains collapsed, leaving the remaining two "fingers" ironically forming the victory sign. Much of the fog also seemed to have blown away as well. Though three out of the initial five mountains collapsed, the remaining two retained their sharp end.