Auria decided to quickly regenerate the flesh wounds she received from his previous attack and the cut on her hand when Masun was busy with creating a duplicate of his weapon. She focused her inner power to achieve such healing abilities, but doing so uses up the energy she gets from consuming flesh, which she has been wanting for a while now, but no where to be found.
She could only keep this up for a few more minutes before she loses her grip and faints from exhaustion. Auria knew something was a bit off. 'If he could summon two swords to begin with and dual wield them, there's no reason why he didn't do it earlier..' She thought. Masun closed in on her when she was muddled up in her thoughts, and so there was no time to dodge his attack, but she had something in mind.
Auria knew it was going to hurt. Hell, it might even cost her an arm, but she was going to do it anyway. She decided to treat her arms as a shield, but when she blocked the scabbard which was secretly disguised as a sword, she noticed it didn't cut into her flesh, and that's when she redirected all her attention to the other attack that was milliseconds from cutting into her shoulder. Auria bashed her right arm into his blade as if she was holding an invisible shield, but in reality there was nothing but her arm itself. When his blade connected with her arm, it sent half of it flying off from the sheer force she put into it.
The hand flew all the way out of the arena in the general direction of Charles and Felicia. Even though it hurt like hell, she didn't have another second to waste, so she focused all her strength into this single punch which was enough to pierce through flesh like it was nothing or send whatever it comes in contact flying if it was blocked.