Yeah, kog came to my mind, but he doesn't need it that much because his q grants him passive AS, but I would assume kog players like maxing theirr w for dat %age health taken away.
Vayne I would agree too but even without an AS buff her w still takes away a chunk of your health regardless, but I see what you mean.
For harass/ poke/kill lanes, I would pair up with a champ that can follow up more actively. Yeah cait has her net, but the animation is not as straight away with the likes of ez, graves, and corkis e just to name a few