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Could we implement two-handed katanas? In reality, katanas are meant to be wielded with two hands; very few swordsmen in Japanese history actually wielded the katana with one hand (e.g., Miyamoto Musashi's style dual-wielded a katana and wakizashi). The overwhelming majority of Japanese sword styles wielded the katana with two hands.
There is a mod out there that claimed to do this, but it just changed the katana animation to a normal two-handed sword animation. It would be nice for the katana to have its own a two-handed animation. Also, from an aesthetic point of view, the katana in BG1 and BG2 is very long and it looks awkward to wield it with one hand.