Bassena Vaski's outrageously large mana core was already common knowledge ever since his first trial's clear, and only became more cemented with his rapid tower climbing.
For espers, mana was like a battery. The bigger their mana core, the more mana they had, the longer they could fight. It translated to power, and then...misery.
Proportionate to their prowess was the disadvantage. The larger their mana core, the longer it took to clean the corrosion inside. And with Bassena, there was an added bonus.
His darkness.
The power bestowed upon him by the Snake Bearer, the power that brought him to the highest height, to become the youngest Saint-class. That power, which kept so many people safe, had kept many guides in nightmares.
