V looked pained. "Cantrips are the most simple and basic of spells that any magic user can cast. They are generally useless, however a creative mind can often find ways to give them effect in certain situations. For example, Mending is generally fairly useless, as the same task can easily be accomplished with a needle and thread, but if you were on an airship and the envelope were to become torn Mending could be used quite effectively. Open Close can be used to startle someone or lay a false trail in a dungeon room with multiple doors, for example."