The game already features various magic schools such as fire, ice, nature and others. However, most enemies don't have specific weaknesses or resistances to these magic types. For instance, undead are vulnerable to holy magic and resistant to blood magic, while fire-resistant mobs deflect fire school attacks. This addon expands the system by giving mobs two important attributes: vulnerability to one magic school and resistance to another. For example, the Ender Dragon becomes susceptible to ice spells but nearly immune to End magic.