The Heretic's Staff is a sinister-looking magical weapon with a twisted, dark wood shaft that appears almost alive, covered in eerie, glowing runes that pulse with a faint purple light. The staff is topped with a grotesque, carved bone ornament resembling a screaming face, with hollow eye sockets that seem to follow the viewer. The wood is rough and gnarled, with cracks that reveal a deeper, darker material beneath, suggesting a cursed or corrupted nature. The overall design is asymmetrical, with the bone ornament slightly off-center, adding to its unsettling appearance.