Global Exclusive means that a certain feature or unit is only, or is first (1st) available in the global version of the game. Such content will not usually come up to the other version of Brave Frontier such as the JP and EU version of the game or may take some time.
If you want to know more about Brave Frontier's Global Exclusive contents and features you can go to this section.
Disclaimer: Due to the overwhelming response of players, some global content and features may be ported to the other versions of Brave Frontier such as EU and JP. This is to keep our growing community entertained, happy, and in the top of their game at all times.