Hi. Today I'm going to present my way to build Fizz.
(This is my first build so sorry for everything what is wrong :S )

Pros

- Very good in mid lane
- Deal a lot of damage with combos
- OP Passive
- Not squishy


Cons

- Slow

As the most of ap champions, I start with Doran's Ring, then buy Sorcerer's Shoes, and THE MOST IMPORTANT Lich Bane!!! Lich Bane will give us passive to deal a lot of damage with Urchin Strike. To get more ap, i go with Rabandon's deathcap.
To get some HP, I buy Rylai's Crystal Scepter, and Zhonya's Hourglass. If I dont win (or loose) until I buy those, i sell Doran's Ring, and buy Void Staff.

Other suitable summoner spells could be Ghost, Exhaust, heal, Teleport.

I don't recommend to pick Clairvoyance, Clarity, Revive, Surge, Promote.

To avoid turret attacks or enemy abilities (e.g. Veigar Baleful Strike )

When you have sheen or Lich Bane, before you hit your enemy, use w (for sheen's passive) > q > r and e if needed.

Don't waste your mana on minions. Your Seastone Trident passive is everything you need to kill minions.


Good luck ownin enemies with Fizz. =)