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Y took the two chainsaw-edged swords and pressed on the accelerator, the inner workings of the swords smoothly worked together to create a rotation force and the chains began spinning to an incredible degree.

"Press the accelerator again," I said. And when Y did as told, the saw teeth spun even faster causing the whole sword to vibrate.

"The sword's balance is off, the motion makes it slightly hard to control." Y said.

"Good, that's all I needed to know, now give them back, I'll adjust them and give them back to you for further research," I said.

Once Y handed down the swords, I began inscribing more stuff on them, mainly the saw teeth katanas, they needed some sort of inscription to tone down the vibrations. As for the first two swords, a few inscriptions to manage the weight increase and stagnate it at certain levels was enough to make them perfectly usable for Y.