Talk:VPBE/@comment-25707182-20150830080719/@comment-3974211-20150901195849

I'd say it's a grey area. "Invisible power" is usually used to refer to things that neither the player actively does and that the enemy cannot actively counter. Getting more experience for doing what you were already doing probably does qualify as invisible - yes you have to last hit to get the bonus experience, but you have to last hit any way to get gold. It's not an extra objective to get an extra reward. This is unlike Bard who has to collect his bonus experience.