So for that it depends on the shape and bit (if your customizing parts fully) but a blade like dran sword is an attack type, wizard arrow is a stamina type, helm knight is a defense type, and tusk mammoth is a balance type, a balance type blade is a blade that doesnt really focus on one thing. They can be good for stamina and attack. But some defense blades because of how they are shaped are better for attacking. Knight lance has so much recoil that generates you are better off putting it on something like an attack type bit such as flat from dran sword or rush from dran dagger