Twisted Feed

So, a champion that isn't mentioned much anymore is Twisted Fate. And for good reason; he's quite good now but not broken. However I feel he could use a little tweak or QOL change on his E. It seems almost like a waste when the passive extra on hit can be moved into his passive to make for a real E, OR to make an active E that ramps up his AS for a few seconds exponentially (or some other active).
I realize that he is not in need of any real changes in comparison to a vast number of other champions, but as I said before, an E active would just make it seem as if Twisted Fate had more to him and would add variety to his kit. It also would buff his AD capabilities which are sub par.
The trade-off of course is, now his AP farming and Turret taking is increased. Which is why I'm just asking opinions on Twisted Fate as a whole and what you all think of his E and how it could be changed.