The leading old Magician shattered into dust, the two behind him wearing expressions that suggested they had no time to react!
They had considered that they might attract attention from above and be attacked, but they hadn't anticipated it would happen so abruptly.
Logically, the Ancient Worm should not have many Yakshas in its possession; to rapidly exterminate the Ancient Sorcerers above, it would likely strike where there were crowds. As for those in the underground palace, who couldn't escape for the time being, even if they were discovered, they shouldn't have been targeted so swiftly. But everything seemed completely different from what they had expected!
Casting Techniques were the classic moves of the Yakshas when slaying enemies at sea. With their immense strength, the Yakshas could, using their tridents made of special materials together with concentrated force, kill dragon whales from tens of thousands of feet away!