This page keeps track of the various forms of cards. Keep in mind two things: Firstly, that there are multiple categorisation systems; some people may divide cards differently based on things that /happen/, like Related Action Cards, and things that /exist/, like most non-effects. Secondly, a card can easily have multiple effects and/or non-effects that will make it fit into multiple radically different categories of cards; for instance, a card that gives you the power (Rule card) to pay some form of points (Point Card) to protect cards in your pool from being discarded (Backup Copy).
Card Features Edit
These are game mechanics that may appear in cards, but they can be combined with pretty much every other card type so it's impossible to categorize them.