well the broadsword alone gives 100% attack speed, i just a put 4 IAS jewels for a total of 160%.
in the old forum, ive already written 2x since XV patch that this Broadsword will give machine gun effect attack speed but nobody pays attention to it since Carsomyr is kinda mainstream for the Werewolf until today.
in Realm, there is Secret Broadsword that also gives 100% attack speed and a 5% chance to cast Lvxx Singularity on Attack. quite noobish if somebody would use it on PVP dont you think