How would you feel about a Magic version of Death's Dance?
Almost like... some kind of spell vampirism.
Obviously it would need stats that would make it unattractive to Vlad, otherwise Riot might feel compelled to nerf him more. The most straight forward way I can think of to accomplish that would be to minimize the AP the items gives and focus on attack speed instead. So something like-

So you get attack speed, CDR, some OnHit damage, Eyes of Pain, and some amount of magic damage vamp. I know it would be a godsend for
. And it might finally encourage Riot to dumpster
until they rework her. So a win-win, really.
?
suffer because of 
your force-multiplier
and then you just need a sustain item. The last two slots could be filled with more sustain from Gunblade, burst from Lichbane, %pen from Voidstaff, or whatever utility/defense options suit your needs.