+1 it's a very cool weapon to combo with, as the special attack takes 75% (65% with vigour I believe), it's quite useless for the damage it does.
I would suggest it to have 25% or slightly higher special attack decrease for the damage it does or make it special attack slightly higher with for example x4 hits of 100-215 (10-22/99 HP) that each have a chance to hit something or hit nothing.