Is Beowulf any good?

He’s decent for a 4* berserker

He's vanilla. He's good at being a berserker but there's no specific niche that he fills on a team.

Is as good as rare prism.

He has one(useful) role which is as an NP nuke having one of the hardest hitting NPs in the game, unfortunately that's all he has and even in that area he's beaten out by Lu Bu due to the free NP5 so in short no he's not good.

He is decent. I have him at np2. Howevet, my herc is np3 so i don't use him much. His skills are weak but he has good numbers. He couldbreally use interludes/strengthening for his skills though.