As the viper looked at Azusa, it's red eyes shined for a brief moment and immediately Azusa felt a bit dizzy. Taking that opportunity, the viper tried to swallow her but fortunately, Azusa was able to get back to her senses rather quickly and managed to dodge the attack.
The attack that Azusa had suffered was a spirit or soul based attack that completely bypassed her strong physical defenses. Actually, even most common soul based attacks had to withstand the resistance of the flesh before reaching the soul. But the attack that the snake had used had managed to completely disregard this resistance. It was actually quite an impressive skill.
As Elena had told her that this trial was primarily not based on fighting, Azusa was not very serious when she had decided to engage this snake in battle. But after seeing that the very first move used against her was a really strong one, she decided to change her mind. The battles here was definitely not going to be easy.