Rule 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…
• 133.7.b Signature is a supertype that may apply to game objects of any card type. It impacts the rules for deckbuilding. See…

Official Core Rules