Anon asks: "Is Walk in Darkness supposed to multiply damage even if the next attack is a damage-multiplying power, such as Assassin's Strike? I've heard people say they do this, but it's never worked for me, so I'm wondering if it's a bug."
Ratty, as in Ratbeard the developer, talked about this once . . . check this link. Others have noted recently the way it works seems strange as well and he promised to check it out.
Personally though . . . I think as long as you look awesome, it don't matta none.
OH YEAH, dig the name on my Level 4 Swashbuckler there (sorry, it's the one class I just really haven't played much of).