Many today think demons and such are a big joke, but in Ephesians 2:2, Paul defines Satan as the "commander of the powers in the unseen world."  The Gospels demonstrate that Jesus had control over Satan and his demons, or fallen angels.  Paul's letters explain that we need armor provided by God because we are fighting against "evil spirits in heavenly places." (Eph. 6:12)  So what is it going to be--victim or victor?