Leveling is an important aspect to the classes and RPG setup. There are several ways to obtain EXP, and there are also several things you are able to level.
By default, nothing gives EXP. You are able to set it up so that anything can give you EXP. To begin, there is your "main" level which affects your class level, and then there is a level for each profession. As you level up your professions, you can configure how much main EXP you obtain per level. This is all configurable in every of the profession config e.g in mining.yml:
# Experience given to the main level # when leveling up this profession experience: base: 20 per-level: 3
If you want to directly give main EXP to a player for finishing quests, doing tasks, or killing mobs, you can simply use the command or the experience trigger. If you want MythicMobs to drop EXP, you can add experience sources to classes.
You can toggle whether or not the main EXP level should override the vanilla EXP bar.