Spectromancer cards are divided into four elements: Fire, Water, Air, and Earth. There are twelve cards in each element, numbered 1 through 12 based on their casting cost. In addition, there are six "houses" of magic: Holy, Death, Illusion, Control, Mechanics, and Chaos. Each house has eight cards, also numbered 1 through 8 based on casting cost.
Read In-game instructions for further detailed description.