Talk:VPBE/@comment-27080952-20151212022333/@comment-35229418-20151212134121

Or, alternatively, you can see it this way: if you have Last Whisper, it's worth 10 armor penetration for every 33 points of your opponent's bonus armor. If you have a LW upgrade, it's worth 10 armor penetration for every 22 points of your opponent's bonus armor.