This is a great game, especially if you enjoy losing.
Each card has a color, and specifies two colors which may be played to follow it. Even though they can be played on either players turn, some cards can only benefit you on your turn, and others will open the door for your opponent to hurt you. So to play a card, you have to be lucky enough to (a) have it in your deck (b) have drawn it (c) start a chain or have a compatible card appear at the end of the chain (d) at a time when the card could actually benefit you, rather than being wasted or even harming you.
The real confusion comes from the fact that the game does not always display the archives and minions for both players. At times, to know whether its wise to play a card, youll have to remember not only which minions you have out on the table, but also which ones your opponents have played, and which cards theyve been drawing from their archives and the shared archive. AI opponents know all this stuff automatically, so of course they have an edge over any human player who doesnt have excellent short-term memory.
At first, youll be infuriated that every card you play works against you instead of helping, but the game is possible to play after all, especially if you learn when to skip opportunities to lay out cards.