Prince Lanling in Battle (蘭陵王入陣曲いさましきはかめんのもの、おんようけんびのりょうおうなり, Ranryōō Nyūjinkyokuisamashiki ha kamen no mono, onyō kenbi no ryōō nari?) is the Noble Phantasm of Prince of Lanling. It is regarded as a song composed by soldiers that praised the Prince of Lanling who wore a mask in battle. The song was transmitted to Japan during the Tang Dynasty as gagaku, and is still being danced to. A song praising courage and beauty, it improves the morale of friends, and causes the enemy to falter. Furthermore, Prince of Lanling, who was regarded for his beautiful visage, bestows enemies with tremendously strong pressure and fear with the sight of his beauty.

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