Although the sound emitted by the Banshee's Scream brewed by Ye Feng was a bit harsh, and without a certain level of mental strength, even the user would be subjected to indiscriminate attacks, you had to admit that its effect was powerful and took effect quickly.
Setting aside its indiscriminate attack effect, the Banshee's Scream was indeed a rather good potion, and there was a way to avoid the attack: as long as one simply stuffed earplugs into their ears while using the stuff to lower the sound to a certain degree, the effect could be mitigated.
However, Professor Sprout clearly did not think so, because she found that all the second-year students except for Ye Feng had passed out. In other words, apart from Ye Feng, she had no students left to teach in this class, but Ye Feng...
Chapter 84