Make Fizz more difficult to play?

Not saying to nerf him overall. Since Riot seems to like the guy and try to keep him relevant, and I have to see him mid almost every second game, can he at least not be a brainless champ?

I was excited when he was first released, I thought he was gonna remind me of something from blue magic from MTG where you have to outsmart them and use a lot of strategy to win while royally pissing off the opponent with annoying abilities. Fizz exceeds at that the annoying part, but he doesn't require much thinking. Too often the poll is just used as a panic button to bail Fizz players out of making mistakes due to its uber short cd. Too feed as fizz requires you to be really BAD.

My idea is to add a slight delay (0.3 - 0.5 second would probably be enough) to when he becomes invulnerable on his troll poll. So while hes jumping on the pole he could take dmg, and only be fully invulnerable when hes totally on top of the pole. This would make it possible to potentially bait the pole, as well as to not let Fizz players have it so easy when there is a skill shout about to hit them in the mouth and just go "Oh I got caught out of position again, better press E." If they weren't anticipating the ability in the slightest, they won't be able to use a get out of jail free card, but skilled Fizz players would be able to feel rewarded by dodging an ability instead of just pulling off a simple move every 5 seconds. To compensate they could increase the max duration of playful trickster, even though its already fairly long.

If I'm gonna see Fizz almost every game, that's fine, but can he at least require some skill?