[Ryuzaki]

As someone who has builds that will absolutely gimp any kensei who runs this item (read, 100% dark res+), I honestly think giving it a toggle skill would be the way to go.

As you can imagine, putting all the effort into using an item that effectively gimps your HP, for a super thematic damage type that is unfortunately the easiest in the game to resist. (Vampires get resist naturally, moreso with essence, there are 2 different items that offer 30% resistance to dark as well, 100% isn't even hard to achieve, it's trivial) is a bit of an absolute killer. Sure, you could argue "You got hard countered, git gud", but when it comes to something where you're going for a fun little niche, and are ultimately shat on by anyone with SAN, or carapace, or fangs, or boots, or a shield, or a fancy Onigan fucking necklace. Not nice.

A toggle skill, that lets you either switch the damage off, or something that lets you bypass dark resistance would be brilliant for it, and I could see what is otherwise a relatively useless item get some use with these changes.

Also, more sheathes when, and can we PLEASE get them considered accessories, not off-hand? Last I checked, you wear a Saya on your belt. We're not all Vergil.