Thirteen allowed Tiona to join the battle because he needed all the help he could get.
So when one of the nine Hyenas fell into the hole, the Black Snake decided to deal with it first, knowing that her Master couldn't leave his spot since he was the commander of their unit.
Right now, the greatest threat was the Rank 4 Hyena, who had realized that their encirclement was useless since they couldn't jump over the holes that littered the surrounding areas.
Because of this, it made a whooping sound, calling all the other Hyenas to gather at its location.
The moment the Hyenas gathered and blocked their only path of escape, the members of Thirteen's hunting party turned tense. If the smallest thing went wrong, they would have no place to run.
Even the Warsor Black Hound that was locked inside the cage could only whimper at the sight of the Hyenas, who once again started to laugh as if telling the Humans that they had seen through their little trick.