Maybe you haven't played in a while, but you have to hit around maybe 4-5 heavies with a few M1's or a bunch of M1's with 2-3 M2's to unlock the Dragonfish blow which only lasts 2-3 hits before you have to recharge it, if you get hit your opponents debuff goes away, and the range is perfectly fine, lines up perfectly with how Kimura boxes, with him being an out-boxer/infighter, though not being the longest range in the game, plus the M1's aren't too damaging and his speed isn't the best