Regarding the Sussur Bark weapons... I actually think they're pretty great.
I only have one suggestion for them: the benefit should apply to any version of the weapon type that's thrown into the fire.
For instance, right now it only works with ordinary daggers, sickles, and great swords.
I think it would be wonderful if it worked with *any* dagger, sickle, or great sword. Meaning, if you tossed a +1 dagger into the flames, then it should give that dagger the silence ability. Or if you tossed in Worgfang, then it should give it a +1 and the silence ability on top of what Worgfang already has.
That way you, as the player, would feel a deeper connection to your weapon, like you've been through something. To use Worgfang as an example again, it's a dagger you find and get used to, and the you have this rare opportunity to upgrade it into something even more special. I could see wanting to keep a weapon like that around for a long time just for the flavor.
