This is a hybrid build for Ezreal.
I start off with the boots so he has speed and spell pen. I then get rage blade because its cheaper and has attack speed attack damage for early game harass with mystic shot and ability power. I then get majis so that when you use your ult to snipe someone across the map you slowly build up ap. Next I get lich bane so his ability power can convert to his mystic shot damage. I get the hextech blade because it boosts everything ez uses and has an ability to slow the enemy for when you need to chase your enemies. Lastly I finish with infinities edge next because it only further increase the usefulness of your harassing capabilities.
Make sure to harass with mystic shot by always aiming it at enemy champions. Only use it on minions when you have just used your ult once you reach level 6 and still its better to use on the champions for conservation of mana. Use your essence flux to be able to harass from behind your own minions and while they are behind theirs. Also you can arcane shift to the side to set up a mystic shot but only do so if you think it will be the killing blow. Also never charge in unless you have the opponent near death otherwise you will get killed very easily.
Make sure to communicate with your team mates about who is low on the map so you can try and use your ult to kill them and buff up with that majis. Ganking people also becomes very useful because when they start to try and run behind their turret you can pop ghost chase them down get the kill and still run away by arcane shifting out of range of the turret.
Work with your team don't be alone cause you can easily be ganked. Try to get the killing blow with mystic shot until you have 20 stacks of mijis which at that point just make sure the enemy dies. If you manage to get all of your items just sit behind your team mates and blow up the enemy team. You can simply essence flux regular attack, arcane shift mustic shot, regular attack then ult if need be.
high end nuke damage
easy to get away from bad situations
can chase people past their turrets
low health very squishy
Very difficult to 1vs1 early game
Mana restricted early game
All of your abilities sound like sex moves or is that a plus?????!?!?
Thank you and feel free to comment with any questions or concerns make sure to comment if you are going to rate.