Two shadow powers within his body!

Xue Ren awakened the power of Shadow Ruler's Divinity.

That was the power the former ruler had been born with. Of course, the destiny of this very 'Ruler' has been shattered, but the shadow attribute couldn't be taken away from him. Furthermore, Xue Ren got the shadow of the victorious wife.

She was as if living being that could provide the best for her 'master'.

That's why, Xue Ren truly got her victorious shadow too!

These two powers were blending nicely allowing Xue Ren to turn into shadow himself. He had also an access to that 'Shadow World' which was way stronger compared to every shadow user. It's said that every shadow has its own world.

The reflection of the shadow itself.

Juliet has been comprehending her shadows very diligently, so that her Shadow World would be the strongest. Within this shadow world she would be 'Ruler' and dominate her opponents with fast and unpredictable attacks.

It would be hard to reflect such powers.