A EZ made simple build, one of my favorite characters to play with and very fun to play. There not much under explanation and sorry that its not and in depth guide.

Pros

Perfect Mid.
Spammable skills.
Great escape.
Great early game Nuke.
Usefull Ult.
Sexy skill animations.
Best dance in the game.


Cons

Squishy!
No CC!
Vulnerable to CC.
Targeted first.
Some difiiculty to master.
Slight mana issues.

Some items should be switch out depending on the team you are facing. Some teams are very hp heavy this is when you trade out the Whisper for a mandred, it will improve the speed you take those sort of teams down faster.

EZ does two things. One he can carry a team very well or he can be the biggest feeder in the team. Due to EZ being so squishy you have to remember to keep your distance even during team fight keep a few steps back.

Blue buff + your Q attack will will mean you can use your Ulti a few times during a team fight if lucky.

Last hitting and creep score is the most important thing you can do early game. This is done simply by only auto attacking or the creep when it has a small bit of life left. This will get you the majority of all the creeps giving you more gold, and this will stop you from pushing to the enemy tower leaving you with room for getting ganked by the enemy jungler. if you can keep this up then you are well on you're way to getting the items you need.