Dotatus

Great game so far but noticed there is a lot of information that isn't made very clear to you and not only that but having a hard time finding any help online on google. So decided to make a post here seeing as others may have the same question. My search did tell me that you cannot retrain/re-spec your skills. So if you cannot relearn them how many skill points do you get total? Am I able to fill out 2 skill trees or would I only be able to fill out one? Thanks in Advance, Dotatus