Just to have a try, Damian provided everyone with a glass of cooling potion before they began their slaughter for the day. Soon, it became evident that they had no need for the additional cooling fans attached to the hoverboard or the shade above their heads. Everyone was performing at their peak.
Of course, using the crystal consumed mana, but everyone could afford to spare a little to activate its cooling effect, which lasted for half an hour if used solely to regulate body temperature. Damian even experimented with it, attempting to release ice attacks, but failed. It wasn't a spell—he had already suspected that, as he hadn't seen any runic circles near them when they attacked. Still, he had to be sure. Other than keeping their bodies cool, the crystal in their chest had no real use.
