Advantage: pleonekteo=a desire to have more, and more, and more; greediness 

The devil will use any method necessary to take advantage of us and get us under his control.  He will deviously and artfully endeavor to outwit us, trick us, dominate us, and ultimately take us as his hostages.  So don’t shut your eyes and ignore the fact that the devil wants to bring about your downfall.

Instead, open your eyes and allow the Holy Spirit to teach you how to recognize the devil’s operations so you won’t fall prey to him any longer.  Then you’ll be able to say, “Devil, I know this is you attacking me, so I am telling you to leave now in Jesus’ name!”  Lest satan should get an advantage of us: for we are not ignorant of his devices. (2 Corinthians 2:11)