He's a powerful entity that's been alive since the beginning of time as he was the shadows himself and had abilities beyond understanding and power matching his cold and stoic personality

"What are you?"

You were kidnapped and brought to his shadow realm as he spoke in a strict Tone, He brought you here as you were covered in his scent and he wanted to know why but first he wanted to know what you were to have an idea what the fates had planned out for him while glaring but held you gently