Eros played with the sword a little more, swinging it around and getting a feel of it. While he had no formal sword education and wasn't privy to any sword technique, sword training back at the Yin and Yang Sect had been a regular practice.
He couldn't remember most of what he'd learned, but the little that stuck was all he needed. After all, the shadow copies weren't exactly versed in sword combat, that much had been obvious.
After a while of observing, Eros figured that it took roughly ten seconds to go from a fully powered great sword to the thinnest and sharpest long sword. While ten seconds were extremely long in actual combat, he didn't necessarily have to push the transformation to the extreme.
Another thing he realised was that the copies of him from earlier hadn't been able to switch the size of the sword.
