Few notes from my part.

-I'm alright with the sword bit, some of the things I'm going to end up throwing out will require some powerful anti-magic or counter magic indeed.
-His age seems rather low for having gotten himself such a reputation.
-Long destroyed kingdom... of 8 or less years?

Other than those, it seems alright to me besides grammar and cApitalization bits that IcePezz will bring up if he cares.

Would ya wish to see the demon or leader of demons that is mentioned in the bio represented at some point in the roleplay?