BetterPokeBroadcaster
A free, open-source modification for Pixelmon built on a pure Forge foundation. The project features flexible settings that can be fully customized to meet your needs.
Main Features
The configuration system allows you to set up various types of Pokemon spawn loggers. When a creature matching the specified parameters triggers a certain event, a configured message will be displayed in the game chat.
The most common use is notifications about Pokemon appearing in the world, but the functionality isn't limited to this. The modification also supports tracking Pokemon captures and disappearances. The architecture is designed so that you can easily add your own event triggers if needed.
Compatibility
Requires the pre-installed Pixelmon modification to function.
Additional Materials
You can see the mod in action through YouTube videos showcasing its functionality.