Cray Elemental (クレイエレメンタル Kurei Erementaru) is a clan. All Cray Elemental cards are treated by the rules as being of all clans and nations, and as a result, Cray Elemental cards can be used in any deck regardless of clan. However, the only Cray Elemental card currently in the Standard format is Giant Deity of Distant World, Valkerion, which can only be called onto the field through the Genesis-exclusive astral plane mechanic.
A mysterious energy that was supposed to exist in ancient Planet Cray. While currently they only have the power and influence of that of a "spirit", they are believed to possess pure and powerful strength originally.