The reliaton number of blades between bey type

When the number of blades (on the layer, whell or attack ring) increases, does the defense potential increase to ?
Same way When the number of blades decreases, does the attack potential increase to ?
Or have any relation number of blades between Bey type ?
I will be glad if you inform me about this subject.
What's the best stamina shape? A circle.
What's the best attack shape? A triangle or oval, something with edges to hit.
Add more edges to increase stamina. Decease edges to increase attack. Xiphoid, for example, is square shaped, has good attack. Guilty has good attack, and honestly feels mostly oval sometimes.