You have to create account using this sign up link, After sign up you need to buy spell book which costs $10 to play the game and you will also get security keys. You will start earning DEC once you reach Bronze 2 League. While signing up keep in mind that the user you choose cannot be changed. Username cannot be changed again, keep this in mind while creating account, after purchasing spell book you can set username.
If you use another email in creating account you will get another hive account.