It may also have a supertype which more broad, or subtypes which are more granular
Life Gain: In multiplayer, your life total is a resource
Burn is a core part of the Fire-type archetype, but in this era it shone through two cards that worked not with Burn but instead Fire-energy manipulation
Ghostwalk allows Feyrin to exchange places with a friendly common any time during the turn, opening up limitless possibilities, especially paired with Feyrins ability to summon Illusory units any time during the turn
Usually, cards are just restricted (i.e
However, some of its decisions are suboptimal, picking a weaker creature rather than a stronger one (within the same summoning level), and thus requires the player to review the deck to ensure that there's no oddities