Scordeo's Edge is one of the best one-handed weapons in the game, as is Rust's Poignard - especially when combined. Scordeo's can stack above its cap currently, and while this is obviously a bug and will be fixed, you can get over 100 bonus accuracy if you build around it, and it applies to both weapons. Even after the inevitable nerf/fix +20 accuracy is no joke. Attacks that hit multiple times provide multiple stacks (it is particularly devastating on a Monk with Swift Flurry and Heartbeat Drumming). Rust's Poignard attack speed vs flanked also applies to both weapons, and when combined with Scordeo's you can prone lock most bosses quite easily (Bring Low has a 7 second duration). It is hilariously powerful when you get a Blade Cascade proc. The fact that it's a small weapon makes it an ideal off hand weapon for using full attacks.