Spiritual discernment is a must. Demons that are hard to see are masters in every form of deception. Apostle Paul mentions an experience with a demonic power that was a master in every form of deception. He was hard to see. You may come into contact with one too. This is one reason why you must sharpen your spiritual discernment. Apostolic and prophetic intercessors will face more of these evil spirits in the days ahead.