Elsword is a game with many different type of Characters with different type of Gameplay, and i feel like the game need a Class trial, maybe a dungeon where you'll play a character on the 3rd job, showing to the players that don't know what to pick what they can do at max level inside some kind of "tutorial dungeon" once the trial is done the character is deleted or something similar.
Don't know if an idea similar as been posted yet, i've searched on the forums didn't find anything.