Attribute
From Yu-Gi-Oh!
Attributes, are essentially the "Elemental" groups for each Monster Card. There are different cards made to support each "element", and there are popular monsters of each kind. It is possible for a monster to be considered part of multiple attributes via a card effect, such as with cards like "Elemental Mistress Doriado", "Elemental Hero Electrum", and "Light and Darkness Dragon".
In Yu-Gi-Oh! The Sacred Cards, Yu-Gi-Oh! Forbidden Memories and Yu-Gi-Oh! Reshef of Destruction, there are four additional attributes, Thunder, Shadow, Dreams, and Forest. DARK is also renamed to Fiend.
Gameplay and Glossary
