Yet another update with a lot of features. Join the discord server for future updates.
You need to reset your config.yml, skills.yml, your GUIs and language file for this to work.

• Added conditional JavaScript GUI options.
• Added multi language support for GUIs.
• Magic shop is now open! Special skill items that can be bought using souls /skill shop
• Sorry to my fellow mages and vampires if they felt they're being left out. To make it up to ya, I added a new dope ability for each. Try them out!
• You can now rename internal skill names or create new skills. Note that your data will be lost.
• You can now assign each skill any ability (from the plugins abilities)
• Now you can use %amount%, %cooldown%, %energy% and other extra scaling placeholders anywhere in the GUI item.
• Added custom bloods feature (not the energy type).
• Added Call of Duty red screen and heartbeat pulse.
• Descriptions in selector GUI config now look cleaner.
• Interactive help pages.
• Swordsman dual sword wielding.
• Add an option for Swordsman parry stat.
• Permanent XP/Soul booster permissions. skills.xp.<multiplier> and skills.souls.<multiplier>
• XP/soul gain permissions. skills.xp and skills.souls
• BossBar permission. skills.bossbar
• Add a new animation option for holograms to go straight up.
• Added "/skill test" command to give some levels, xp, stats and etc for testing purposes.
• Auto-reload config file watcher.
• Hover messages.
• Added optional messages instead of holograms for kills.
• Added an option for default skill.
• Added a lot of scaling options to all the abilities.
• Added Party & Friends GUI.
• Added level requirement and souls cost for skills.
• Some abilities now support "hp" and "maxHp" placeholders in their scaling.
• Improvements GUI is now more customizable.
• Soul loss option now supports placeholders.
• XP loss on death.
• More advanced disabled-world options.
• Added an option to close GUI on damage.
• /skill user level, now supports levelup properties from config.
• Advanced item types for abilities.
• Added an option to announce auto-saves.
• Added flicker ActionBar mode. Check config for more details.
• Added optional data reset options upon skill change.
• Added an option to adjust actionbar update frequency.
• Added an option to update BossBar frequently just like the ActionBar.
• Added an option to change the time format in config.
• Added /skills souls to deposit or withdraw souls with money.
• Added /skills friendtp <player> to teleport to a friend.
• Recoded masteries and moved the config to a separate file masteries.yml
• Added an option to disable mastery downgrading.
• Removed placed block checks for masteries since the data will get disposed on restarts. If you're worried about creative, you should get a creative protection plugin.
• Default autosave time was changed from 5 seconds to 30mins. I forgot to change this for a long time. The only reason your server didn't lag is because the auto save system uses
• some advanced checks to see whether the data needs saving or not.
• Custom Energy cooldown Sounds. And sound notification when energy is full.
• Fixed blocks-that-prevent-skill-activation in config.
• Added silent option for /skill user level to perform levelup rewards or not.
• Added particles when ability is in "ready" state.
• Completely removed 1.8 support due to the excessive amount of missing features.
• Removed the hurt effect from Priest Seal of Life.
• Fixed an issue trying to charge energy for offline players.
• Fixed players with no skill not being able to level up. Added default max level option in config for players with no skill.
• Performance improvements.