Hello player.

As a tip, the best way to make use of the trial is by getting the Mystery Y+1 as your FIRST golden BT.

This help you save more pots as Kisame is usually only good for his mystery and not so much on his other skills.

By getting his Mystery Y+1, you can still use him in all your big AOE fights.

While slowly saving pots to get the rest of his skills if you have spare.

Till date, even my Kisame have not gotten full 5 golden BT despite spending thousands of vials.

Good day mate. Peace out. Hope you get lucky with his mystery~