Complex sentence: An outstanding tactician, he was made all the more iconic for his missing eye, and Masamune was often called "dokuganryū" (独眼竜), or the "one-eyed dragon".
Split into simpler sentences: An outstanding tactician, he was made all the more iconic for his missing eye. For this, Masamune was often called "dokuganryū" (独眼竜), or the "one-eyed dragon".