How To Get A License
To get a License first you must go to Westgaurd next you need to press the "arena" icon (witch is two swords and a shield like the Guild icon.)and that will make you have five buttons to press press the one in the middle (that will say "License Test".) then you will be taken into a battle if you win you will get a License and when you have a License you can add a gem to your hero.
The gem you chose will boost all your monsters.