Strength

The boy's sudden declaration was met with flat silence, as everyone slowly turned their heads towards him. The brief pause allowed Phel to see that on top of the nobles originally attacking Evin, there were also a few elite commoners that were following Lopar. The injured nobles had also joined the fray, as Phel could see the student who had his thigh penetrated was pushing against the giant rock with zealous hatred. 

Aside from Dagan and Bella, this was basically everyone in the original 1st year Combat class. Considering that Phel and Arza were on Evin's side… it basically meant that it was a 3-versus-21 situation. The odds were definitely against them, but since Evin was kind of able to hold back the 12 nobles, then Phel and Arza just needed to take care of the other 9 people.