The update for has tons of new Pals and challenges, including a difficult boss battle against Bjorn and his companion Bastigor.
These two warriors are a deadly team, existing as perhaps the hardest boss duo in the entire game. To claim victory over both opponents, you'll need the best equipment and team that you can put together.
Bjorn and Bastigor are the final enemies at the end of Feybreak Tower, a boss rush building featuring six other Trainers and their Pals.
You need to defeat everyone else before you can face Bjorn and Bastigor, so make sure you have claimed enough victories beforehand.
When you challenge the Tower on Feybreak Island, you should have Pals that are all around Level 60 to maximize your chances at success.