Quick Questions Regarding Profs!

[Aaronock]

Hi, I got a few questions that I wanted to ask cause I had a few thoughts today about changing my prof build.

However I am not sure if some things got changed around or not since the last time I played around with some skills. So instead of wasting quite a few mils and time and effort, I figured I could ask the server instead.

1. Does Soul Burn work on GTB users now? I recall it not working, but hey maybe I was wrong or this got changed?

2. Does Mind Breaker lower regular mdef at all? I know soft mdef from int is lowered but asking about that hard mdef too.

Anyway if any profs with either skills can answer this stuff for me I'd greatly appreciate it!