Grigoth, The haunted souls

Grigoth is a fallen Angel, banished from the Heaven because of his horrific passion of dark science. Grigoth is willing to commit horrible act, if it mean that he will be able to continue his research of his dark art.He is now ramping in the human real ,as a mercenary willing to kill anything in exchange of money,that will be used to help him in his research.He is a souls inside a cloak, fighting using a musket created using only bone taken on giant.