User blog comment:Emptylord/Season 3 - PBE Patch Notes/@comment-79.191.107.217-20121118220914/@comment-210.6.166.17-20121119142737

its a buff to lich bane for gods sake, it is most likely that enemy champions are going to have more armor than mr and in most cases the magic damage will mean it hurts more. It is also a lot more viable as a rushed item now with the base damage. The mr lost is nothing since it is not really wanted on the burst casters anyways, plus there is a cost reduction meaning burst casters can get it earlier.