Now that she had a decent idea about the strengths and weaknesses of their opponents, Tess felt confident that she could make quick work of them. As long as she was able to get her dagger past their tough exterior, then she would be able to release an attack of magic from inside them. Doing this should result in an instant death for the creature, if the first one was a good indicator of the effectiveness to use it.
She rushed to the nearest one, which had now forced the man who had helped her earlier down onto the floor, and had begun smashing its fists down around him. Using the fact that the man was occupying the creature's attention to her advantage, she found a weak looking spot on the creature's body and thrust the dagger inside. The creature lurched backwards in response, and began swiping at its back in a desperate, feral manner.
