Talk:Blood Arts/@comment-31750736-20170420223708/@comment-26113680-20170421042245

Higher Rank, Special and the DLC missions give increasingly better 'xp' for leveling Blood Arts.

So if you plan to get maxed Blood Arts, it would be recommended to do it once you reach the end game. Even there, pick a solo enemy with large vulnerable spot (Ouroboros) and grind on it.