Magic Explosion
The commander certainly felt happy that now they were said to be able to breathe a little after initially losing their first line of defense.
And in the end he had to retreat to the second defense, where now he and his troops had succeeded in causing quite serious damage to the enemy troops.
On the other hand, he also realized that this could be done, of course because of the good strategy of wizard Brian, who separated the wizards from their main troops.
So they can concentrate on defending and attacking simultaneously.
Looking far away from the second tier of the fortress, he saw that the fighting there seemed very intense, from what he saw it could be confirmed that they were still fighting in the core area.
So whether it was the defending troops or the enemy, many of his victims would have been his victims. On the other hand, his attack plan would have failed because of the intervention of the magicians.