Fire and air are complementary elements, each one strengthens the other, meaning that the nature of the Knight of Swords is in harmony and his traits from each of the elements are exaggerated. He is gifted with a sharp mind that loves puzzles, clever jokes, intellectual debates and games. His fiery nature gives him fearlessness that serves him well. He is very observant as well, nothing escapes his notice. The lack of earth and water elements mean that he may have a tendency to be swept away by theory. His lack of emotional depth, represented by water, mean that he can also be cold and calculating, using his intelligence for selfishness.