User blog comment:ClariS/Unofficial PBE Patch Notes (1.0.0151)/@comment-4022742-20121103114323

So, Blackfire Torch will have the same magic Penetration as Haunting Guise... The reason for upgrading it should be to have 20 more AP, 50 more health, some CDR and a nerfed passive that was already calculated to be not all that profitable?

And Hextech sweeper will now grant movement speed like Witchcap did for buying books and a health/cdr item....

I'm doubting Riots decision making process at the moment....