First of all,【(Impact)】, to make it simple, it’s a spell that throws a mass of mana.
The mana is collected to one place, it flies, and it’s thrown. Though it is doubtful whether you can call that magic, it’s unfortunately weak.
Mana is originally a thing without mass. Because it’s hardened by force, it’s given some mass but it’s just not hard enough. It gives as much damage as throwing a rubber ball. To make it worse, the range is also short and the spell disappears when it gets a little too far away. It’s more efficient to throw a regular rock. Because there wasn’t enough research done on the subject, it was bound to be weak.