I would personally say at LEAST 5 PDs. Definitely not just 2-3, especially since it's useful close range burst on single targets (assuming you don't die mid-swing).It has beserk yeah, I remember back in GC days a Musashi with hit like this would easily go for 50+ PDs. But seeing how broken gear in blue burst is I doubt it will be worth that much but I still won't believe it's only 2-3 PD. Specially since with that Matt said and you can only get it on Hard mode, people tend to just look at how broken something is and not how hard it is to get one.
Let just say if I can only get 2 PD for it I will use it myself untill I get bored of it, if someone has a better offer then I want to part with it.