Talk:Cataclysm Empress Feeva/@comment-66.249.83.191-20150407225916/@comment-26148704-20150408222735

UBB disappears if you activate it then move onto the next battle, also I think you have to use it in the same turn that it fills up. After the UBB gauge is full (Not Overdirve, the actual gauge) you need to swipe up like as if its a normal BB.Generally, I save it for the boss fight because earlier battles leading up to the boss aren't worth the might of a UBB. Lastly, (As the person above me stated) when both Overdrive and the BB gauge of the 7 star hero are full (Givin they have UBB unlocked) swipe left to unlock it.