133.7. Supertypes are Categories that may apply to game objects of multiple types. They are listed before a card's type.
133.7.a. Champion is a supertype that applies exclusively to units. It impacts the rules for deckbuilding. See rule 103.2.a. Chosen Champion for more information.
133.7.b. Signature is a supertype that may apply to game objects of any card type. It impacts the rules for deckbuilding. See rule 103.2.d. for more information about Signature cards.
133.7.c. Token is a supertype applied to temporary game objects of any card type. See rule 176. Tokens for more information.