The power of the mind and of magic defies your pathetic attempts to understand them, submit and you will be spared
A cold and cadavorous collection of nefarious necromancers.
Magic should have side effects, both expected and unexpected - fortuitous and deplorable. Expected side effects add anticipation, while unexpected ones increase the drama of the scene. The result can be comedic or dire, it dpends on which circumstances work best for your game.