How come Aura Blade doesn't have a buff icon?

[BlueAlchemy]

I have a similar problem too when I'm playing as an LK, I can never tell when my LK buffs are active since there's barely any indication of them being active.

I'm not sure what exactly the battle log is.??It was incorporated shortly before I left.??o=

The battle log is that other tab in your chat log, if you click the + sign you can customize what you want to appear and not appear on the battle log, you can't turn off shown exp, you have to use @showexp for that