@Meddler: How would you do to Void Staff what you did to Last Whisper?
I imagine the answer might be "we won't do the same thing", but it seems kinda lazy to leave Void Staff as a "you can't use any MR to fight me anymore" item rather than "you can't counter me with MR as easily". It's still got the same problem its had for seasons: it's non-negotiable. You never get something else instead of it. There's absolutely no choice involved; you either get Void Staff, or you suck/lose/die/etc.
What could be done to change this? How would you turn Void Staff into a component item rather than a complete item?