Angrist: how exactly does sharpness work!

[xorzac]

My first time getting a sharp weapon, ever, in this game (must be super rare, given all the chars I've slaughtered getting to 600 ft or so).

It's only 1d5, which is very weak. Does it ignore the armor protection? Reduce it by x%?

It's the perfect weapon for my current build (super high crit machine). But I need to make sure it's better than say a mithril LS (2d6, 2.1 lb), or a deathblade (1d9, 1.2 lb).