When the main pillar of hope was broken, players had no other place to rely on and was turned into mincemeat by the boss. Right then, no player was capable of standing toe to toe with the Celestial tier boss. Hence, the only sensible route left for them was to run away.
The boss did not allow anyone on the battlefield to escape. He truly intended to kill every single player there were then. He then pulled out his sword and sliced a dimensional doorway. At then, the dimensional doorway expanded fully and out came a swarm of monsters. With Angus leading the command, the swarm of newly spawned monsters attacked the players like locust swarms.
Now that Angus was the only superpower left on the battlefield, players were completely outmatched and overwhelmed. A single swing of his {Blade of Obliteration} was able to wipe out the weak players within 500 meters! With such powerful killing skill, Souron's Castle was overrun easily.