on load:
clear {Bossbar::*}
add "&6&lCossssss 1" to {Bossbar::*}
add "&6&lCossssss 2" to {Bossbar::*}
add "&6&lCossssss 3" to {Bossbar::*}
on join:
while player is online:
display "%colored (random element out of {Bossbar::*})%" on bossbar with 100 percent by 10 seconds for player
wait 10 second
jakiś dodatek trzeba