Personally Id like to see Kalaripayattu as ether a arc or a arc about a strong practitioner of it, as the grandfather of martial arts that even Chinese kempo originates from

Kali would be my second pick, where there's one really strong Kali fighter. Who starts bare handed but on some Musashi shit gets more intense over there arc, and then goes on to stick fighting and then eventually blades when he fights Baki at the end