My favorite element is Bismuth (Bi) it belongs to the groups of evil elemens: Anti-Mony, Arsenic, and Bismuth. And it is as evil as it sounds. Except this evil is very well disguised. It is known to cure ulcers, syphelis, and generally do very good things to the digestive system, it is the last stable element, and this is where some of the evil comes in, because it is not actually stable. Also the picture speaks for itself:
