Right now as they are they are basically re-skinned energy swords
They could perhaps use a unique mechanic
And here is the unique mechanic I suggest the katana has two unique items the katana
And the sheath
The sheath deals a okay amount of blunt
But it's unique purpose is to allow katana combos
And you can unseath the blade in two different ways and put the blade back inside in one way
Quick draw which is just simply clicking on the sheath with the katana inside
And slow draw which you alt click
Making you do a do after