Conjuring Challenge.
It was a pretty common term amongst the mages who liked to compete against others.
It is a simple type of competitive event that is made by two mages. In the game, it was a challenge where you would need to read the spell that was shown to you, and then you would try to conjure the spell.
If your character was on the wizard route and you had increased your comprehension of the character, then you would be easily winning these fights.
The principle behind this challenge is inspired by the quick weapon draw legend of Wild West duels, where two gunslingers would face each other, and the faster one to draw the weapon would get the shot.
This was the same.
You would face your enemy, and then when the mark is given, you would conjure the spell given to you. And when you conjure your spell faster than your enemy and hit him with it, you will simply wind the challenge.
That was how this worked.