This is my second guide on mobafire, so please leave comments and votes so that i can improve. What i do here with Ezreal is i have enormous amounts of damage near the late game so it is very important that you use this advantage to bring down squishies and gank a few casters or such. Make sure to spam your ultimate since the Q (which is your most important spell) will reduce the cooldown time on all of your spells.

The runes i have chosen will help greatly with surviability since you need to stay and farm for a while. The armor penetration marks will increase damage done greatly so that you will be feared by the other team very much. :D

The masteries i have chosen will suit your needs of surviability and will let you spam your ultimate and your E spell for good damage with the Archaic Knowledge mastery for great damage. The extra damage from your masteries will help you farm alos, and the utility masteries will help your mana regeneration effects while you also gain much more xp.

The items i have chosen for Ezreal gave me over 1100 damage per almost every hit whenever I hit a critical, and the attack speed plus the ones given from your passive will grant you insta-death on casters and bring down tanks.

The skills i have set will grant you great power with your Q so it is easy to harrass and farm at the same time. make sure you have a good partner who is good at harrassing or a tank to keep the enemy team from killing hardly any minions.

The summoner spells i have picked for Ezreal will help you with escapes and chases since you will need to get away from threats. I like to have flash since Ezreal already has one, so double flash is not very expected by the enemies. :)

The pros for Ezreal are:
Amazing damage output that could turn around the game
Easy chases since the speed bonus from the items and a lizard buf will track anyone down
A very good champion to work with
Can save people with the Lizard Buff or from just scaring away the enemy sometimes

The cons for Ezreal are:
Ezreal is very squishy, so that is why i picked the the armor and magic resist runes
Ezreal may be targeted if you are not careful
He isnt as great early game when you first start until you get your manamune
He can be overcome by thornmails pretty easily unless your team can take down the target fast

Make sure to kill minions very very much since Ezreal's items will cost a lot. Use your Q for last hitting if you need to.

The overall damage output that you use will make you very happy :P please leave comments and Votes :D