133.1. A card can have one or more Categories and Sub-Categories based on the properties of its front and back sides.
133.2. These Categories and Sub-Categories dictate the behaviors of the card during play.
133.3. Spells and other effects can refer to categories, sub-categories, supertypes, card types, tags, and other characteristics inclusively or exclusively. Example: A "non-unit card" is any card that is not a unit. Example: A "unit" is any game object that is a unit, regardless of any other categories it belongs to.