Simple Math (Part 1)
People might wonder how could Acala best an opponent that had managed to kill Verhen, if not even suspect him to have killed his fellow Ranger with his own hands. Saving Lith's life, instead, would have given Dawn the perfect witness to her puppet's heroics.
To add insult to injury, Lith would not only be forced to publicly admit his defeat, but he would also owe them a big favor. Acala was still a social outcast, whereas Lith was acquainted with all the upper echelons of the Kingdom, to the point of being familiar with the Royals themselves.
'I'm dying to steal all the secrets behind the success of such a man and Verhen is far more valuable alive than dead.' Dawn thought while studying Lith's movements through her spawns' eyes.