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Blademaster isn't a class that requires any of the Stats to really be effective. I personally trait for Con, so that I can be as tanky as possible. Your speed of your slashes and pommels with be affected by your Twoarts ability and any artefact band you may get. Your damage will scale with Strength, but damage is not really a widely-used tactic in the BM arsenal in a 1v1 scenario.
For hunting, you're going to want Con for sure to survive. Your damage is again based on your TwoArts, unless you decide to use Burst which is INT based, but overall subpar to the slashes.
"Our lives are not our own. We are bound to others, past and present. And by each crime and every kindness, we birth our future."