Because Du You was shielded by others in the front, no one was able to influence him, which allowed him to fully engage in guiding the spell. The fireball in the sky grew larger and larger, and the surrounding temperature kept rising.
However, due to the dark magic, the people below felt a chill in their hearts. That feeling of being simultaneously subjected to heat and cold made the people instinctively want to distance themselves. Even the crazed Murlocs wanted to flee at this moment. Unfortunately, the island was just too small, and they did not have time to escape amidst the battle.
When the timing reached a minute, the power of the fireball escalated an entire tier, which was beyond the reach of those third-tier creatures.
They could feel that once the fireball fell, half of the island would be destroyed.