Another big difference between spell towers and archer towers was that the user must utilize their mental power to power up the spell tower's equipment. Although the energy consumption was much lower than a normal spell, it was still a considerable amount if used for a prolonged period.
Even if Xiao Lin activated his Miracle state and transformed all his attributes into intelligence, he would still be unable to relieve himself of his mind's fatigue.
The spell tower that Xiao Lin operated held up until the very end and continued firing out flame bombs. It was difficult for other people to sustain their mental power until the final moment and some even fainted right inside the tower.
