The Boss Dragons are the most complex and decisive game in Dragon Mania Legends. They can be challenging to obtain, but there are a few ways to get them.
The first way is to complete all of the Main Quests in the game. It will unlock the final Quest, called “The Ultimate Showdown,” which will reward you with the Boss Dragon.
The second way is to breed two Legendary Dragons together. It will also reward you with a Boss Dragon egg.
Finally, you can purchase a Boss Dragon from the Shop for 1,000 Gems.