Building gardens, shrines, statues, and dancing bears/maypoles that increase the Fear Factor will raise all of your troops' Combat ability. For every +1 on Fear Factor, your troops' Combat ability will increase by 5%. Achieving maximum Fear Factor popularity (+5) will give your troops 25% increased combat ability. Click on any troop and notice the green squares above their health bar. There is one green square for every +1 popularity on Fear Factor. If you have bad things such as stockades and dungeons, your Fear Factor popularity will change to negative integers and your troops' combat ability will decline, with red squares appearing above their health.