Go to the Brave Frontier Global Facebook page and like us so that you can access the code generator for a free unit! These units start out as 2-stars but they can evolve up to 5-stars!
Please note that the codes are case-sensitive, meaning you must follow the capitalization properly (you cannot type "s" as "S"). If you have issues with your code, you can generate another one and try that instead. You can only claim Zephu or Weiss once for your account. If you get a message stating that you cannot participate any more in the promo today, please wait 24 hours and try with a new code.