[Some remarks of mine.]
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1. Webpage
This is where you come once you log in. Here the updates are visible, like new cards and features recently added. (Latest News) On the left you see links to other informational parts of this site. If there is something you don't know, you might find it there.
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2. Forum
This is where you can discuss balance issues, report bugs, suggest new features and so on. Also, if you can't find the answer to your question on the main page (1. Webpage), you can ask it here. When there are new messages since your last logout, a book appears.
2.1
Per sub forum, the 4 most recent topics are visible. To see all topics in the sub forum, click this button.
2.2
To open a topic from the first post, use this button.
2.3
To open a topic on the last page, use this button.
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3. Challenges
Here you can manage in and outgoing messages and challenges. To actually start a game a player has to challenge another one and the other has to accept. When you have an incomming message or challenge, an icon of an envelope appears.
3.1
Here you can see the incoming challenges (if any). In this case you see an incoming challenge. The two main options are 'Accept'and 'Reject' If you Reject, no game starts. If you accept a game is opened with the deck (make sure you have one ;-)) you've selected in the dropdown menu. (In the example, the chosen seck is named 'Barbarian Templars')If you select "Outgoing" you can view your current outgoing challenges. From here you can choose to withdraw a challenge (for example, if the other player went offline) or wait until the other player accepted. If they do a new game is opened.
3.2
Here you can view your in (Inbox) and outgoing (Sent mail) messages. You can select how old these messages should be at max.
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