The Fire-Eyed Bull was a Level Three demonic beast. It was not a very high level, but its eyes were a treasure. It could resist extreme cold, thus they were very highly prized by adventurers, for they would be extremely useful when one explored those places that were freezingly cold.
As a result, there were pitifully few Fire-Eyed Bulls left, and the price for the eyeballs of the Fire-Eyed Bull had also become astronomical. When these people discovered that there were Fire-Eyed Bulls here, it was unavoidable that they would have the desire to hunt them down.
However, the Fire-Eyed Bulls moved in a herd, and if they launched a stampede, then only Spiritual Ocean Tier elites would be able to oppose them. Evidently, there was no one in Spiritual Ocean Tier amongst these people, so there was a need for them to think how to lure one away from the herd. Only when one of them was away from its herd would they gang up on it and kill it.