How about some kind of shield breaker item?

Dunno if this has ever been considered, but what about an item that either reduces the effectiveness of shields temporarily like a grievous wounds type of debuff that would cause either physical or magic damage to do extra damage specifically to shields or a debuff that reduces the potency of shields applied to that champion for a brief time or a sheen proc type item which emits an emp type effect which does massive damage only to shields.

Basically, when the enemy has a Lux/Orianna, a Karma/Janna and a Tahm Kench and they get even the slightest bit ahead, what the actual hell are you supposed to do against them? Also, the existence of such an item would allow shields to be stronger. Kind of like how Soraka is allowed to be as fucking broken and op as she is because ignite and other fairly easy to get grievous wounds items can be used to shut her down pretty hard.

Anyways, thoughts?