...
Taking a deep breath, Shin stared at his opponent, devoid of emotion.
Unlike when he was using the Ying-Yang Swordsmanship under the state of Reality Manifestation, his current style was pretty much incomplete, so it was better to throw every useless thought at the back of his head and put all of his focus on this battle.
And since he didn't have proper swordsmanship for this particular style, he was planning to use the variety of skills from his arsenal, especially the ones from his Class Fighting Style, the sword-drawing arts.
He could also use the other Mentalism Techniques that he created in the real world, which were also inspired by his in-game skills.
As for the form of energy that would replace the Mental Energy, the surrounding Mana and the one that was present within Shin's body was more than enough for it.