There is no kind of virtue a christian brother or sister is supposed to have that is better than a prayerful life. Every virtue is good, but being prayerful as a Christian, is what every single christian Should crave for. because that is the weapon and power of a Christian.
We live in end-times, The enemies are fighting to take the place of God in your life, and if you are not prayerful, you might give in. God wants you to be very prayerful, which grants you the opportunity to get even closer to him.
We need prayers as Christians to survive this tempting world. There is no single day we can live successfully without prayers, because we need to keep the connection to our heavenly firmly and strong.
Without prayers, we might be disconnected from God.