2. yep.! but pretty debatable cause getting all the skills would surely slow you down since the other skills isn't that quite good.. So it's better to get all your skills that worth the JP points and take the passive that you like..
4.Same class will give you +100 skill expertise so you will start with level 2 skill and you will pretty much have faster cooldown..
+ Rep If you want to | Currently Playing:Valkyrie Sky