An idea for Lux

I think we can all agree the lux buff this patch was too much. Her winrate has soared, she's second only to skarner at most elos. So I suggest reverting the buffs to her q but instead give her a new buff. Lux's main issue IMO is her inability to harm tanks at all. Tanks can simply build mercury's treads, then all armor items and ignore her and not die at all in a reasonable amount of time. A tank building Randuins, Dead Man's plate, merc treads, frozen heart, and cinderhulk has no risk of death to lux despite building only 25 mr. Even if tank was taking damage from lux poke (maybe she got fed?) he can just build warmogs to regen it all. I suggest giving her passive % bonus health damage. That way it won't help her burst squishys, she's have to get in auto attack range to take advantage of this buff, and tanks can still ignore her if they build mr. However, tanks who simply stack hp/armor will take more damage form lux if they ignore her. IDK about the excact number but maybe 5% bonus healt per passive proc? Again a tank who builds like banshee's veil would still never die to a lux, but at least that will be an option instead of just building health and armor.