I have two ideas related to the defense log:
1) When you open the defense log, it would be really helpful if there was a notification on the screen that tells you if (a) the attacker has an active shield or (b) the attacker is currently online. If either notification is visible, the "Revenge" button should be grayed out. If neither notification is visible, do your best Liam Neeson impression.
2) When you are in the defense log and click on an attacker to visit their base, it would be SO nice if you could click a "Revenge" button while visiting the base instead of having to exit and revenge them directly from the defense log. With respect to my first suggestion, if they have an active shield or are currently online, the "Revenge" button would not appear. There's an "Attack" button when you scout an opponent in clan wars ... why isn't their a "Revenge" button when you are scouting an opponent that previously attacked you?

