Under the intervention of the skeletal warship and the three giant dragons, the tide of the battle changed with extreme rapidity. Within just a few minutes, the scales of victory had completely tipped toward the defenders. The Demon army's Supreme Commander was fully entangled by Tigana and didn't manage to react appropriately. By the time the Demon Refinement realized something was wrong, all was already lost.
Of course, if it could defeat the Succubus Lord before him, there might still be a chance to turn the tables, but after fighting for so long without killing his opponent, and now with two six-armed Serpent Demons having 'swum' down from the city wall, vaguely forming an encirclement, he would have to leave now or risk being sent straight back to Barto Hell along with his dead subordinates.