Divine Sword!
By revealing his supreme weapon right at the beginning of the battle, Minos made the strongest enemies look at him seriously when they saw that their weapons wouldn't be enough to deal with the opponent.
"No wonder he's so feared by Doctor Cauns! He is truly worthy of all our attention." The strongest robot in the group of metal creatures looked at Minos and commented as he felt the spiritual fluctuation of a supreme weapon.
Minos' supreme weapon emitted an oppressive sensation even stronger than his Dragon's Eyes, something capable of negating lower-level powers but also capable of bringing the free spiritual energy in heaven and earth closer to its user.
High-level cultivators usually used more of the world's free energy in battle than their own energies. But supreme weapons were so demanding that a single one of them would be able to take all the free spiritual energy in the environment away from those who could not use a supreme weapon.