As choosing a mastery is final, it would really be cool to have someplace to quickly test out the “feel” of a mastery class. Not every skills have to be unlocked but it seems like the biggest choice you have to make after your class.
On a side note, it would be nice to see different version of the character when you select masteries on the class selection menu. It would help give a visual idea to new player of what the mastery class is about.
Thanks for reading.