Kazuha main DPS build

So idk if there are other Kazuha dps mains on here. But I wanted to see if I could get some opinions on my Kazuha build. I really want to try and get him to 5 digit damage for his burst. For the weapon, I previously had the sacrificial sword on him but switch since I read that you really wanna have high EM. I’m think the freedom sworn sword would do the trick but I don’t have any 5 star swords at all so I wanted to see what would be best for a f2p player like myself. Rn my Kazuha has a 15% ameno damage as well. But any advice would be appreciated!