-You can now create BossBar in 1.8 with BarAPI, download it here:
https://dev.bukkit.org/projects/bar-api
-Added the new autorespawn effect that support from 1.8 (maybe 1.7) to 1.12!
Boosbar are still buggy in multiplayer.
-Added reflection, you need to test minecraft versions, I don't know which work.
-Added beta particles effect.
Updated to the latest bensku's skript fork and latest 1.12.2.