Making Tiamat's/Ravenous Hydra's Passive/Active An On-Hit Like On Titanic Hydra?

I recently thought about what it could be like if Tiamat and Ravenous Hydra would be designed to be more like Titanic Hydra.

Ravenous Hydra for example does not actually give you extra on-hit damage on your autos but instead only deals extra damage around the target you are autohitting. And while its active is great for canceling your autohit animation and dealing a bit of extra damage, Titanic Hydra actually gives you even more on-hit on your next auto and is an actual attack-timer reset.

Here are the LoLWiki - pages, take a look yourself: http://leagueoflegends.wikia.com/wiki/Tiamat http://leagueoflegends.wikia.com/wiki/Ravenous_Hydra http://leagueoflegends.wikia.com/wiki/Titanic_Hydra

So what if on Tiamat and Ravenous Hydra, the amount of AD the full item grants you is reduced and you actually get an extra on-hit based on your AD aswell as an attack-timer reset which scales with even more AD, just like Titanic Hydra does with your max. HP?

The loss of AD would maybe make it a worse option on champions like Kha'Zix or Zed but they have so many other items to pick from, especially since they now have Youmuu's and Duskblade which they didn't have before not too long ago.

But for champions with high AD ratios who autohit a lot I think it would be a better and much more interesting item. Imagine Master Yi being able to proc the extra on-hit on his Double Strike passive to make those kind of builds more of a thing on him, or Fiora being able to proc the on-hit with her Q, or maybe Yasuo doing the same.

On top of that, there would be much more conistency between all of the three items because currently, Tiamat gives you a passive and active that you don't really make that much use of if you wnat to build Titanic Hydra.

It's probably a change that is not really necessary but one that would just make it much more interesting and interactive of an item.