The sound waves produced by merpeople could cause great damage to creatures, and these damage to humanoid machines would be directly doubled!

Under the impact of these sound waves, the three-star and four-star humanoid machines completely lost their combat ability, their shining eyes dimmed as they fell heavily to the ground.

Meanwhile, the situation of the five-star humanoid machines and six-star humanoid machines was not much better. Although they could still insist on fighting, one could tell from their flickering eyes that they would not last long.

Since the target of these people in black were the alchemists, they naturally knew that dwarven alchemists were best at building humanoid machines, and in this Alchemist Convention, there would be plenty of powerful ones. How could they not have a powerful humanoid machine on their hands?