There are three orders in the Creed:
-Earths Order
-Skys Order
-Magics Order
Each of the order specializes in something which I will explain later.
Octavia has gained the title of master assassin from her years of experience and for being the fastest hooves on the ground. In the public society, she is well known for her music, but in the Creed, she is known for her legendary skill with the use of her bow which was modified and fixed into an assassin blade. Being an earth pony, she could not fly or use magic, but her ingenuity and creativity in the field surpasses the need of wings or a magic horn.