Korma had arranged quite ordinary tasks for Zheng Qing and the others.
Of course, this "ordinary" refers only to the "snap snap magic" she had mentioned earlier. In fact, Zheng Qing felt that the tasks Korma had set up for them afterward were not simple at all. This made him vaguely regretful deep down.
The reason it was considered ordinary was that the tasks the Witch had given them were very "academy-like" magical works—such as constructing Arrays, outlining Talismans, concocting potions, and so on, among which Zheng Qing and the other two could each find tasks belonging to themselves.