WeirdCo's design blog walks through RAM, the resource the studio calls the hidden balancing knob of Cyberpunk TCG. Every card carries a RAM value, and a card is only playable if its color's Legends supply enough RAM between them.
For deck builders this is the constraint that matters most and the one newcomers miss: cost limits what you play on a given turn, but RAM limits what can be in the deck at all. It is why a splash of a second color is expensive in practice even when the mana-equivalent looks affordable, and why three Legends of the same color build a very different deck from three spread across two.
For collectors it explains a pricing pattern worth watching: cards with a low RAM cost relative to their power are playable in more decks, and playability is what drives singles demand once a set is in circulation.