In the Ethereal Combat Trance, to Su Lan, it felt as though Adam was invincible and the longer their battle stretched on, the more skilled he became and the harder it was for her to keep up.
She had completely lost any advantage that she had over him and was the one that was being pushed back and overwhelmed, unlike how it was at the start of their battle, and he was using her own Blade Art against her.
But she had managed to push him away from her for a split second which was just about enough for her to activate and use the Ultimate Plum Blossom Blade Art.
A blade art that even the most skilled and experienced seniors in her family would struggle to use and required many years to learn and master.
It would cause her body and mind to experience a boost in speed and power, but that wasn't its main function and the reason it was such a difficult and renowned skill.