@Legend13
Oni have a great deal of variety among them. Their most defining traits are: immense strength, different hued skin (blue and red being most popular), horns, differing sizes, and an intense love of fighting. Their favorite weapon is a Kanabo, which is an extremely heavy iron war club. They wield it one-handed. And they are almost completely nude, save for a Tiger-skin undergarment (purportedly to show off their muscles, as well as being confident enough to not need any armor). Sex and size are no factors to their strength: the women and tiny ones can still rip anything and anyone to shreds. And some even have special abilities on top of that. The Sazae-oni is a female turban snail that can swipe the testicles off men. And the ones in the underworld are even stronger, since it’s their home (and they’re employed to guard and punish the damned).
Basically their strength is between several grown men to near Superman/Saitama levels.