Fizz's E.
As we all know, Fizz's e is incredibly stupid and I believe it needs to be removed from the game completely. You should not be able to wall hop, have zhonyas, and do damage all in 1 ability and it having a 6-7 second cool down at the same time. It's incredibly unfair and it's impossible to win against when the fizz has 45% cdr with a zhonyas, they're literally invulnerable for 6 seconds max. Like, Riot please.