Index -> Playing the Game -> Card Types
There are six types of cards in the game. Four are hero cards, used only during your own turn: character, mission, gear, and event. Two are villain cards, used only during your opponent's turn: obstacle and adversary.
Hero cards have a Stargate icon in the upper left corner, while villain cards have a pyramid icon.
Some cards use highlighted terms. You can click on these terms to get a complete explanation of their meaning.