By focusing on direct damage, attack, and protection, Steel has elements of Red and White from Magic: The Gathering
That keeps gameplay and decks fresh by taking a lot of cards out of the play pool
These are the Enchanted Rare cards, which feature exclusive art and foil to really make them shine
Some sub-themes include: the synergy between Huey, Dewey, and Louie, Donald Duck's nephews from Ducktales
'Exerting' characters is important - turning a card to its side allows you to send it on quests, challenge an opponent's quests, or activate powerful abilities
You can also take the following actions as many times as you like, in any order: Exert the required amount of ink to play a card Activate a character ability Use an item effect Quest with a character card (see below) Use a character to challenge an opponent's exerted character (see below) Most of these actions require a card to be 'in play' before you can perform them