Ignoring any action inside the classroom, the teacher continued her lecture: "You must learn to perceive environmental mana; every place is different and interacts in different ways with the body. This will help you perceive danger in an area without needing to enter it, and it's one of the most basic skills for a mage."
Turning to the group, she stared at them before saying with a contemptuous look, "Any idiot can cast a spell. Only a true mage understands what happens before magic occurs. For example, how many of you can guess what kind of spell I will cast?"
The professor extended her hand, and a small energy wave formed. The teacher held that wave for a moment to let the students feel it and try to analyze it. After a few seconds, an ice spear shot out.
