Q is the strongest skill if you play Ezreal! This items is the ultimate range combo! aoe Damage,slow and life steel!

plz don't spam E to move in the area!

W is to strong inside the team fight if your team have AD!

R ULTIMATE is very strong to engage and stack your Rising Spell Force (Ezreal passive)

The Ezreal Counter pick is, if you against Caitlyn you must look your distance and take farm! the Q is strongest skill and this can cover you to don't come Cait range! if you play very agro! you must spam Q and w!
the ezreal's combo is hit Q hit! you have a good trade's if your have a good supp like Soraka,Sona,Taric and Leona!
Ezreal Come Strong vs Ashe,Varus and Vayne! you have to spam your skill's!
In the team fights your team have to protect you!

Flash: And E is Ezreal escape tool's!
Barrier: cover you and give you Temporary Shield's!

and 2 give you damage and sustain! if you have 800 gold you may go back to buy and , now you can escape and hunt an enemy, then if you go back again buy the now you have and the active CC (slow)!

secondary item's comeand finish you close the then its time to buy (OP) is coming after! now you have life steel,slow and damage with simple
time to give some attack speed, movement speed and Critical strike Chance! first second and third the strongest item if you play AD hero's now we have aoe damage and can critical chance with Static shiv! last item for Ezreal is

now if you have full build! if you harass an enemy you have biggest damage with a simple Q! in the team fight if someone attack you and Ezreal go to 50% hp you have to activeto take some hp back and slow the enemy! then auto-attack with life steel can full your hp again synergy with passive!
Now Ezreal have physical, magic, aoe and % health damage! he can kill easy a tank equally killing an ADC!