Divinity Mode is the final form of Freud Gagua.
Whenever he is in Divinity mode, his wings becomes Godlike and whenever he launches an attack, a Halo appears on him. He can only defeat the dark lord if he is in this mode.
But before he successfully activated the Divinity Mode, Freud had to undergo some heavy and serious training. He also had to unlock the potential of his being as the divine one.