I have often wondered why magicians and witches don’t flock to Christianity after witnessing the power. Some of them may never see it, but I suspect most do encounter the power of evil on some level.
It is a mistake to think the Devil and his followers have no power. Look at Jannes and Jambres. They were able to match several of the miracles done by Moses and Aaron in Egypt just before the Exodus. The Bible doesn’t say Pharaoh’s magicians matched the miracles by sleight of hand or by clever trickery.
In the book of Job we see some of Satan’s powers when God removes his protection from Job. Satan emboldened raiders and thieves. He killed Job’s children by causing a strong wind to come down upon the house they were in. He brought fire down from Heaven to kill some of Job’s flocks. He even smote Job with boils.
The New Testament calls him the prince of the power of the air. The title sounds inconsequential until you think how much we need air.
I think his greatest feat in this era is as community organizer behind the scenes. It is evidenced by the power transsexuals and other deviant groups exercise in our society.
I’m not trying to build up the Devil. Yet, there is an expression, know thy enemy. I think many of us fail to realize just how dangerous the Devil is.
The good news: James 4:7-8 KJV tells us,
Submit yourselves therefore to God. Resist the devil, and he will flee from you.  Draw nigh to God, and he will draw nigh to you. Cleanse your hands, ye sinners; and purify your hearts, ye double minded.