Fasting is definitely the regular people can do so as to supplement and enhance their prayer. Christ fasted 40 days and 40 nights in the desert before beginning his public ministry.

Moses fasted 40 days 40 nights before receiving the 10 commandments.

“So he was there with the LORD forty days and forty nights. He neither ate bread nor drank water. And he wrote on the tablets the words of the covenant, the Ten Commandments.” Exodus 34:28

Daniel fasted and prayed to understand a vision.

“I ate no delicacies, no meat or wine entered my mouth, nor did I anoint myself at all, for the full three weeks.” Daniel 10:3 ESV

John the Baptist basically fasted every day.

“Now John wore a garment of camel’s hair and a leather belt around his waist, and his food was locusts and wild honey.” Matthew 3:4 ESV

The Apostles fasted and prayed before an important decision.

“Now there were in the church at Antioch prophets and teachers, Barnabas, Simeon who was called Niger, Lucius of Cyrene, Manaen a lifelong friend of Herod the tetrarch, and Saul. While they were worshipping the Lord and fasting, the Holy Spirit said, ‘Set apart for me Barnabas and Saul for the work to which I have called them.’ Then after fasting and praying they laid their hands on them and sent them off.” Acts 13:1-3 ESV

It seems there is a causal link between fasting and an encounter with God or the embarking on an important undertaking. So should we imitate the great men of God in fasting so as to overthrow this satanic NWO.