You should know that the soulseal-technique has been given to me by the reaper in my former times when I was still a deathguard.... it's nothing I have trained on my own, if I am honest only 2 of my main skills are made with my own hands: my speed and control of daggers throwing knives and all the other assassin stuff. And "the system" you know that thing on my arm, all my inventions and machines.
the shadow-control just has been given to my by the demon I was holding for 3 years until I've sealed him in my mask after the loss to Itasaara...