Kyros had expected Fate to be cruel. He knew that the Dark Lizard would order his minions to make ample preparations. If they were stuck in the small room, the piling numbers of dead lizards might even clog the path and make it even more difficult for the lizards to move forward.
It would even be possible for the group to survive and even kill all the lizards. The Dark lizards were larger and couldn't fit in this small path so massacring the entire pack was possible with Kyros's abilities.
And so, Kyros waited for the Lizards to switch tactics. By making some of the lizards retreat and have them start pulling or killing the corpse wall, Kyros could move into the once tight path.
The moment Kyros ran, the knights suddenly began to move forward and dove deeper into the heart of the battle. The lizards were startled at the sudden offense of the group and began to fight back.