Legendary, Divine and Ancient Dragons are the most powerful Dragons in the game, but to access that power they must first be Awakened.
These Dragons all have one Element unlocked at first, and the remaining two must be unlocked through Awakening.
The first Awakening costs Gold and can only be started at level 20, while the second requires Gems and can only begin at level 30.
 
Once an Element has been awoken, it can be used in combat and levelled up in the Academy. Through this, the Dragon will also receive enhanced HP and attack score stats as part of its awakening - making it even stronger!