Draven Keystone Rito Plz

Currently, there aren't any keystone that are exceptionally good on Draven, or a very good fit for him at all. Old Conqueror was great, but that had to be changed for what it was doing.

Currently, Klepto performs just as well as PTA, as Conqueror, as even Grasp. While normally I'd love this kind of diversity in choice, the reason they all perform so similarly is because they all add negligible power to his kit, not because they are all good choices. Some people even took Aftershock and Dark Harvest, though I haven't tried them myself and don't know how they perform.

I'm not sure what I would suggest because any ideas for Keystones I could come up with would make other champs OP, and I think Draven's kit is iconic and shouldn't be changed. Regardless of my failure to find an idea, it'd be great if Rito put some attention to this, as well as other champs that don't have particularly good Keystones. (I won't speak on champs I don't play for fear of sounding ignorant, but I am sure there are plenty.)