I would still be human with the 1st one, which I wouldn't want

Actually, Shade's Physiology is Darkness of the Shadowlands. He just mastered it to the point where he can retain his Human Physiology.

I've never heard of either of them

@Nicholas8293 the left is basically Sung Jinwoo & the left can shapeshift & pull a Tomura but on a greater scale

Death Embodiment