Talk:VPBE/@comment-10428734-20140321112818/@comment-3974211-20140321122915

"it also prevents Miss Fortune from overscaling with armor penetration."

This. Bullet Time would never be balanced with a flat-out total AD scaling - it's already a skill that makes-or-breaks team fights.

It would be worth calculating whether the new total AD magic damage is better than the old bonus AD physical damage, but I would wager it is in most circumstances. Buying a Last Whisper still increases her AD, which increases the magic damage AND the gives penetration to the physical damage.