Not long after, Professor Brian, again took out some props to do the mana test.
And this time the object used as a tool to measure the test was a clear crystal shaped like a ball, the crystal was placed on the teaching desk.
The appearance of the crystal certainly attracted the attention of the students, They would not have thought that it turned out to be Professor Brian.
Will use a crystal ball as a test to test the power of which they have.
"This is a mana crystal ball that has a function to check the power of a magician, there are three colors that will tell us to identify the power of a magician.
The first is red, which indicates that the magician has a standard meaning, if the red color fades, it means that the mana owned by the magician is below standard and if the color is increasingly red and dark.
Then a magician's mana can be said to exceed the standard within a reasonable limit.
