This may be a stupid idea, so just let me know, don't hate. But what if they made him melee, but, removed his current dark winds silencing ability as is, and instead, put it on his his passive as an enhanced auto (with like 600 range or something) that gives him dark winds and combines with his current passive. So if he sits still for like 3 seconds or whatever, he not only gains a burst of movement speed, but his next auto becomes ranged (think poppy) and has the added damage and silence effect of dark winds. In return, the silence effect would be some what shortened by say, 10-30% if current duration, and he would gain a new ability in place of it.
As an aside, I thought it would be cool if he could "link" his abilities with this new move which would be a brief ring-like aoe effect around him (similar range to aurelion sol, but more width) in which he slows enemies hit in that range, and for a couple seconds after, he can initiate his drain or his fear and the ability will link through them to hit multiple enemies champs.
I.e., say he is botlane against support and adc, and after a .75 second telegraphed W (he can move around while using it), he hits the enemy jinx and blitzcrank, then sends his drain at blitz and links to jinx while she is marked and within 1000 units of fiddlesticks, thus allowing him to damage and heal off from two champs with his drain.
Likewise if he hit three enemy champs with his W, he could use his fear on one, and all the marked champs within 1000 units would be feared for the duration.
Anyways, let me know if that sounds stupid or kinda cool