Claymore 18 Yagi Norihiro (2011)

After mysteriously being drawn to the lair of Riful of the West, Clare encounters the fused form of Rafaela and Luciela, which awakens and transforms into the terrible being known as the Destroyer. The entire land of Lautrec now faces its dreadful, relentless assault, and nothing and no one seems able to stop the devastation. Yet there may be an even greater force.