Hi and thank you for comment ! Well, if you prefere play with more attack speed, you should take Nashor's Tooth, and yes maybe Wit's End, but both are less interesting than other items. In fact, you don't really need so many attack speed because of the summoner spell Surge. I think that Fizz needs to be played like a half-range champion (against melee of course) : stay out of their weapon, and harass with Urchin Strike and Playful / Trickster.

When you need attack speed it's when they try to run away, or when a teammate stun them or when you use your shark.

i liked your build. but i like him more attack speed item that stuck with his w like bloodrazors , wits ends / malady .