Octavia

Octavia was Claymore No. 2 of her generation and eventually became an awakened being. During her lifetime, she was known as "Wild Horse Octavia" (沛艾のオクタビア, Haigai no Okutabia). She was among the group of awakened former single-digit warriors who gathered outside Rabona to witness the being whose power surpasses the Abyssal Ones.

(Source: Claymore Wikia)