Ash Of Sin: Custom Entity Effect

This mod allows you to endow mobs and other creatures in Minecraft with permanent status effects through a configuration file. After installation, the custom_entity_effect.json file is automatically created in the config\ash_of_sin\ folder, where you can specify which exact effects should be added to certain types of creatures.

The key feature of the mod is that it intelligently applies effects - if a creature already has a similar effect of the same or higher level, reapplication does not occur. This prevents conflicts and excessive creature enhancement.