Apparently this gw defense radar is using -1 and -1 power even though i turned it off. When i turn it on it uses -1 mass and the normal-204 power (adjacency). This mass usage does not seem normal at all, i'm not sure if it's a gw bug or a game bug. You can see the -1 mass in the bottom right hand corner of the image.
Also uploaded the replay if you want to take a closer look