Holy force is an item that players receive during the Legends' Quest by showing Ungadulu the dark dagger. Players must use it to reveal the true form of Echned Zekin (which is that of the demon Nezikchened) and to prevent him from draining their prayer.
This item does not have any use following the Legends' Quest, and can be re-obtained by using another dark dagger or glowing dagger on Ungadulu. This no longer works after quest completion.
