A level system for pixelmon

I need a level plugin for pixelmon. A level system different from the level that already exists in minecraft by experience.
Exactly like this:

Imgur: The magic of the Internet
https://youtu.be/bfGs8nC9l7k?t=147
One server for example: jogar.gearfriends.net

But I do not know if it already exists or whether it’s a paid or private plugin.
I’ve been looking for something at least 4 weeks, but I have not found it. I even tried to learn how to create plugins, but I’m just curious about programming.

It’s a private plugin that some of us paid to have developed.

Hi, where can i buy this plugin?