Possible Zoe W "Rework"

I was thinking about how Zoe's W on minions was randomized and how a "system" in which Zoe works towards a spell of her choice would work.

From my perspective, her W should be reworked to not drop spells, but to build into spells. Every couple minions (a set number, let's say 4) a shard would drop, but instead, you need multiple shards (say..... 12 shards) to get a summoner spell. Every time you pick up the shard from a champion, you get 2 shards, and killing dragon or baron would give you 4. Once you hit the said 12 shards, you can select which summoner spell/item active you want for your W when you are not in combat. I also think that you should be able to see what spell she has on her W and I also think that you should not be able to exceed 12 shards at a time and you would not be able to store spells (meaning that if you have a spell already and have 12 shards, you would need to use that spell before being able to exchange the shards into another spell)

I think that a system like this would be a lot fairer and actually introduce outplay potential against this ahem BROKEN ahem champion. By knowing what spell she has you can expect some ridiculous play to come soon.

Thoughts?