The whole place turned into an icy hell because of his tremendous power, which changed the landscape.
Both his innate talent skill were too powerful. 'Eternal Ice' seems to freeze everything and let the matter enter, similar to the quantum degenerate state of thermodynamics.
The second one, 'Death Devouring', is a bit evil, and he almost loses his mind as this is the first time he used on a powerful living being and to be on a powerful limit-breaker.
He almost lost his mind, even though, he had quite a powerful will. But he still lost himself in it. He had to be very careful when using it, as he didn't want to become a monster who sucked other people dry.
He felt a bit afraid of his power in half-demon god form. As he was about to move on, he felt a small life force surprising him, and after a careful look, he found the small source of life energy.
