Physical limits involve vulnerabilities where creatures can be harmed by specific weapons, decapitation, or environmental hazards. Creatures with these limitations may be invulnerable to certain attacks but have specific points of weakness that can cause severe damage or even death.
These limits often make such creatures easier to defeat when one knows the proper technique or possesses the right weapon. For example, many legends speak of creatures that can only be harmed by silver or others that become weak when decapitated.