1. The Watchtower will produce resources, but they can only be collected once per hour. The resources in the tower can be plundered by other players who successfully raid you. If you find that your Watchtower resources are being plundered, you can log on more frequently to collect them before they become an attractive target!
2. You can see a record of your raids on other players and other players' raids on you, and attempt to conduct revenge raids on players who successfully plundered your resources.
3. Raiding requires Raid Energy to plunder resources. If you Raid without Raid Energy, you can gain and lose ELO, rising or falling the rankings, but will not gain more resources.