Perdu Hanger/Beast Slayer is all-in-all a respectable combo for BLU that isn't terribly hard to get. Perdu is more effort-than-luck, and CHG is an easy Tier I ZNM with a decent drop rate.
This is just like the other level 73 Slayers, Demon Slayer and Dragon Slayer, Except it has a few higher stats. Basically its a Demon/Dragon Slayer+1, 1 of Best OFF hand weapons for BLU