I think it is pretty dang good. Satan can make himself into an "angel of light" according to the Bible. He doesn't run around with a red cape.
Some of Satan's (the devil) descriptions...
Matthew 4:10
Jesus said to him, "Away from me, Satan! For it is written: `Worship the Lord your God, and serve him only.' "
Matthew 16:22-23
Jesus turned and said to Peter, "Get behind me, Satan! You are a stumbling block to me; you do not have in mind the things of God, but the things of men."
Luke 10:18-19
18. He replied, "I saw Satan fall like lightning from heaven.
19. I have given you authority to trample on snakes and scorpions and to overcome all the power of the enemy; nothing will harm you.
Luke 13:15-16
Then should not this woman, a daughter of Abraham, whom Satan has kept bound for eighteen long years, be set free on the Sabbath day from what bound her?"
Luke 22:2-3
Then Satan entered Judas, called Iscariot, one of the Twelve.
Luke 22:30-32
31. "Simon, Simon, Satan has asked to sift you as wheat.
32. But I have prayed for you, Simon, that your faith may not fail. And when you have turned back, strengthen your brothers."
John 8:43-44
You belong to your father, the devil, and you want to carry out your father's desire. He was a murderer from the beginning, not holding to the truth, for there is no truth in him. When he lies, he speaks his native language, for he is a liar and the father of lies.
John 13:2
The evening meal was being served, and the devil had already prompted Judas Iscariot, son of Simon, to betray Jesus.
Acts 5:2-3
Then Peter said, "Ananias, how is it that Satan has so filled your heart that you have lied to the Holy Spirit and have kept for yourself some of the money you received for the land?
Acts 26:17-18
17. I will rescue you from your own people and from the Gentiles. I am sending you to them
18. to open their eyes and turn them from darkness to light, and from the power of Satan to God, so that they may receive forgiveness of sins and a place among those who are sanctified by faith in me.'
Romans 16:20
The God of peace will soon crush Satan under your feet. The grace of our Lord Jesus be with you.
1 Corinthians 5:4-5
4. When you are assembled in the name of our Lord Jesus and I am with you in spirit, and the power of our Lord Jesus is present,
5. hand this man over to Satan, so that the sinful nature may be destroyed and his spirit saved on the day of the Lord.
1 Corinthians 7:5
Do not deprive each other except by mutual consent and for a time, so that you may devote yourselves to prayer. Then come together again so that Satan will not tempt you because of your lack of self-control.
2 Corinthians 2:9-11
10. If you forgive anyone, I also forgive him. And what I have forgiven--if there was anything to forgive--I have forgiven in the sight of Christ for your sake,
11. in order that Satan might not outwit us. For we are not unaware of his schemes.
2 Corinthians 11:14
And no wonder, for Satan himself masquerades as an angel of light.
26. "In your anger do not sin" : Do not let the sun go down while you are still angry,
27. and do not give the devil a foothold.
Ephesians 6:11
Put on the full armor of God so that you can take your stand against the devil's schemes.
1 Thessalonians 2:18
For we wanted to come to you--certainly I, Paul, did, again and again--but Satan stopped us.
2 Thessalonians 2:9-10
9. The coming of the lawless one will be in accordance with the work of Satan displayed in all kinds of counterfeit miracles, signs and wonders,
10. and in every sort of evil that deceives those who are perishing. They perish because they refused to love the truth and so be saved.
1 Timothy 1:19-20
Among them are Hymenaeus and Alexander, whom I have handed over to Satan to be taught not to blaspheme.
1 Timothy 3:7
He must also have a good reputation with outsiders, so that he will not fall into disgrace and into the devil's trap.
1 Timothy 5:14-15
Some have in fact already turned away to follow Satan.
2 Timothy 2:24-26
25. Those who oppose him he must gently instruct, in the hope that God will grant them repentance leading them to a knowledge of the truth,
26. and that they will come to their senses and escape from the trap of the devil, who has taken them captive to do his will.
Hebrews 2:13-15
14. Since the children have flesh and blood, he too shared in their humanity so that by his death he might destroy him who holds the power of death--that is, the devil--
15. and free those who all their lives were held in slavery by their fear of death.
James 3:14-15
14. But if you harbor bitter envy and selfish ambition in your hearts, do not boast about it or deny the truth.
15. Such "wisdom" does not come down from heaven but is earthly, unspiritual, of the devil.
James 4:6-7
Submit yourselves, then, to God. Resist the devil, and he will flee from you.
1 Peter 5:8-9
8. Be self-controlled and alert. Your enemy the devil prowls around like a roaring lion looking for someone to devour.
9. Resist him, standing firm in the faith, because you know that your brothers throughout the world are undergoing the same kind of sufferings.
1 John 3:7-8
He who does what is sinful is of the devil, because the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the devil's work.
Jude 1:9
But even the archangel Michael, when he was disputing with the devil about the body of Moses, did not dare to bring a slanderous accusation against him, but said, "The Lord rebuke you!"
Revelation 2:10
Do not be afraid of what you are about to suffer. I tell you, the devil will put some of you in prison to test you, and you will suffer persecution for ten days. Be faithful, even to the point of death, and I will give you the crown of life.
Revelation 2:9
I know your afflictions and your poverty--yet you are rich! I know the slander of those who say they are Jews and are not, but are a synagogue of Satan.
Revelation 2:12-13
I know where you live--where Satan has his throne. Yet you remain true to my name. You did not renounce your faith in me, even in the days of Antipas, my faithful witness, who was put to death in your city--where Satan lives.
Revelation 2:24-25
24. Now I say to the rest of you in Thyatira, to you who do not hold to her teaching and have not learned Satan's so-called deep secrets (I will not impose any other burden on you):
25. Only hold on to what you have until I come.
Revelation 12:8-9
The great dragon was hurled down--that ancient serpent called the devil, or Satan, who leads the whole world astray. He was hurled to the earth, and his angels with him.
Revelation 12:12
Therefore rejoice, you heavens and you who dwell in them! But woe to the earth and the sea, because the devil has gone down to you! He is filled with fury, because he knows that his time is short."
Revelation 20:2
He seized the dragon, that ancient serpent, who is the devil, or Satan, and bound him for a thousand years.
Revelation 20:7-8
7. When the thousand years are over, Satan will be released from his prison
8. and will go out to deceive the nations in the four corners of the earth--Gog and Magog--to gather them for battle. In number they are like the sand on the seashore.
Revelation 20:10
And the devil, who deceived them, was thrown into the lake of burning sulfur, where the beast and the false prophet had been thrown. They will be tormented day and night for ever and ever.