Hey Seraph, dunno if you're still looking for ways to change up your blades, but i got two ideas: blade beams and/or rockets. Silent blade beams for stealthy kills using dust cartridges in the hilt or handle of your blade for various elemental effects, or just make the handle have a two-way rocket pulsation system. One rocket at the hilt ti give it more stabbing force, and another the oppisite direction on the hilt to fry enemies you stab. they also hrlp when youre throwing them or doing some aerial maneuvers and need to change directions. There may be a way to do both if you think you can fit all that tech into just the handle of your blades.