Urgot's Q "Corrosive Charge"

I've been watching and studying alot on the new Urgot (as I adore his new design and kit) and noticed his Q is rather a bland/uninteresting part of his kit. My thoughts would be to either add a poison/burning effect to it (as being a CORROSIVE charge) and maybe the burn has AP scaling or max health damage, either or is fine (though would prefer AP), or make it reduce armor by a small % while reducing the base damage of his Q to compensate. I do think new Urgot should have AP scaling on him somewhere as I think it would make building items rather interesting (such as Rylai's Crystal Scepter or Guinsoo's Rageblade) as it would open more pathes to more interesting builds, however nerfing base damage or other scalings would be needed if AP would be added. I absolutely adore the new Urgot and think he is amazing, but in order for him to be perfect I feel there should be additional effects to his Q other then able to lock on and slow, because if that is all it is for then his E does a much better job of closing in to enemies and locking on.