An Archetype is a group of cards with at least 1 defining property.

Archetypes are often identified by a term appearing in all its members names, eg. "Elemental Hero" or "Morphtronic". Support cards for the archetype usually reference cards with that term in their name eg. "Elemental Recharge".

Archetypes are not always supported, such as the "Monarchs". They are not always identified by having a common term appearing in their names, such as the Synthetic Angels or Egyptian Gods.

The concept of archetypes is often used in the manga and anime series to define a character's personality, look, state of mind or style of play.