Hello and welcome to my AP (Now with AD Ezreal) Ezreal guide. This is my first guide, so enjoy!

Avoid being bias, last thing we need is "omg u noob y u play AP wen AD is so mch bettur".
I do play AD ezreal but I prefer to play AP as I find it more fun. I have my reasons and so should you.

Also,
Just because I have my own opinions doesn't mean I'm wrong.

Now I've even added an AD Ezreal build. Enjoy.

AP Runes:
These are quite generic for any AP carry. Other runes you could be looking at are:

Greater Mark of Health because you are quite squishy.

Greater Glyph of Magic Penetration and/or Greater Quintessence of Magic Penetration because more mPen never hurts.

Greater Glyph of Scaling Cooldown Reduction helps with cd, if you choose not to buy extra cdr aside from boots.

AD Runes:

Usually I go with flat AD marks/seals/glyphs and ArPen quints for stupidly easy kills early game, but other runes that help are:

Greater Mark of Desolation for even more base ArPen.

Greater Seal of Scaling Mana Regeneration Late game mana regen helps, but if you are constantly getting Blue buff, it isn't much use.

** Just because I build items this way doesn't mean you have to. You don't learn anything if you don't experiment! **

AP

Your core:
Archangel's Staff
Ionian Boots of Lucidity
Lich Bane
Rabadon's Deathcap

I start with a Sapphire Crystal as you have a small mana pool when you are level 1. As soon as you have enough for a Tear of the Goddess go back and buy it. You want to start gaining more mana ASAP (and the mana regen helps too). After buying your Boots you can either start your Sheen or work on finishing your Archangel's Staff. Usually I'd get Sheen first as it helps me last hit and gain money faster. Then Lich Bane is next on your list, making your Q a much better harassment tool. Then Rabadon's Deathcap for more damage.

The last 2:
So you've built all those and the game is STILL going? Here are some suggestions to items that may help you.

Morello's Evil Tome for the cdr, giving you 40% cdr with boots and masteries.

Rylai's Crystal Scepter for the extra health and passive.

Hextech Gunblade for the Spell vamp and extra AD for more damage on Q and R.

Banshee's Veil gives more mana, health and MR, also with it's passive. Great item if the enemy has quite a lot of CC and/or Magic damage.

Rod of Ages gives more mana for Archangel's passive and health always helps.

Zhonya's Hourglass for quite a bit more AP, armour and a passive that helps, but you shouldn't need. You should never be in the middle of a fight.

Guardian Angel just incase you get caught out by a stun and your team leaves you to die. Usually Ghost + E should be enough for you to escape, unless they have a lot of heavy CC.

AD

Your core:
Bloodthirster (could be swapped with Hextech Gunblade}
Ionian Boots of Lucidity
Trinity Force
Infinity Edge

Start with a Doran's Blade. Extra AD and HP, you should want this first up. Unless you feel like rushing Sheen, then get a Sapphire Crystal. You have to manage your mana REALLY carefully, you have little mana regen and a small mana pool. After farming/killing the next time you go back should be when you have enough for Sheen and (but not necessarily all the time) Boots. Your Sheen should add enough mana for now. Time to build more damage! After finishing your Ionian Boots of Lucidity you should save up for a B. F. Sword (unless you're building a Hextech Gunblade instead of a Bloodthirster, in which case you should buy a Pickaxe and/or Vampiric Scepter). After those items have been built complete your Trinity Force. Then for more Auto-attack damage, build an Infinity Edge. You should have 42% crit from all your items and masteries, which is more then enough.

Any other items used to fill in the spaces are here:

Hextech Gunblade for the Spell vamp and extra AP for more damage on just about everything.

Banshee's Veil gives more mana, health and MR, also with it's passive. Great item if the enemy has quite a lot of CC and/or Magic damage.

Black Cleaver gives more damage and atkspd. It also has one nice passive that works with your Q. An item I usually build.

Manamune for more AD, mana and mana regen with a passive that gives more AD depending on mana. I don't think I've ever built this item on Ezreal. Other people like it, but it's not really appealing to me.

Madred's Bloodrazor quite a decent item. The on-hit effect works with your Q, but other then that the damage it adds is quite minimal and it costs a ton to make. However Madred's Razor makes last hitting easy. So you can decide.

As AP Ezreal, you are a high damage caster.

Your [Q] Mystic Shot is a long range skillshot that applies your Lich Bane. This is your main harassment tool. It has a low cd and reduces the cd of other skills when you hit with it. It has a stupidly low AP ratio (0.2), but a while ago it didn't even have an AP ratio.

Your [W] Essence Flux is a short range skillshot that deals decent damage and applies an atkspd buff/debuff on allies/enemies respectively. I max this first as his [E] isn't a reliable damage source and I like the sound it makes. The AP ratio is (0.7) which is decent.

Your [E] Arcane Shift is a teleport with a nearest enemy seeking missle. I max this second as the cd drops per level. The AP ratio is (0.75) which is good, but the factor of the missile actually hitting when minions are around is low. If you want to hit someone try using this skill on the person you want to hit. Only problem is that it makes hitting your skillshots much harder to hit.

Your ultimate [R] Trueshot Barrage is a GLOBAL ULTIMATE! YAY! Everyone loves Global ultimates! This means you can snipe someone from across the map with it. Much fun to be had. Theres an AD and AP ratio, and they stack, so both AD and AP benefit. The AP ratio is (0.9) and the AD ratio is (1.0), making a Hextech Gunblade the best way to maximise damage with spare item spaces.

As AD Ezreal...
(just read from above if you don't know what the letters are.)

Your Q is your main attacking skill. Spam it in fights. It also deals on-hit effects. Hitting things with reduces the cd of all other skills by 1 second. Oh, I remember something cool. If the enemy has a Shaco and they have all their boxes in a small area you can shoot your Q and for some reason it will reduce your cd for every box it hits. Usually it doesn't go through things but it works. Well, it did when I last tried.

Your W isn't much use. Atkspd buff for Allies and debuff for enemies. Not much damage but it does help if a Yi or Tryndamere are bashing your face in.

Your E is awesome. Use it cautiously, as from experience, teleporting into brush chasing an enemy can easily get you killed. If you aren't sure it is safe, don't use it to advance on an enemy. HOWEVER, that being said, I max this second because the mana cost doesn't increase per level. It is too good for chasing a bunch of low health enemies.

Your R is still awesome, just it has lower damage then an AP Ezreal. I usually use it to start fights, as having majority of their team with 3/4 of their health is better then waiting until the fight is over and possibly missing them.

If you suck with Skillshots... don't play Ezreal. If you REALLY REALLY REALLY want to play Ezreal, because obviously his /dance is so sexy that you can't resist, practice in some AI games. It just takes practice.

TURN ON SMARTCASTING RIGHT NOW!
SERIOUSLY. Unless you don't know what it is. You should know, if you don't go find another guide that explains it.

AP

During the laning phase, last hit as much as possible. Don't be afraid to use Q, but strike a balance between last hitting and harassing. You can also harass by E-ing close to them and using W. If your going in for a kill you need to wait for the right time to do so. The best time to go in for a kill is when a creep wave has arrived and started fighting, this way they can't get in the way of your Q when they run back to their tower, which nearly everyone does.

When team fights come around your role is to harass them until they do something. You just want them half dead for your team so your team has the greater advantage. When your team or their team initiates you want to pop your ult, as usually they are all grouped together. You can wait until the fight is over to pop your ult but you get more damage out of firing it to initiate. Anyways your E makes is simplistic to chase people, and with ghost you can't go wrong.

By the time end game comes around you are less effective then before. Nearly everyone would have Magic resist by now, making you less effective. The plan is still the same however, you just need to be a bit more careful now.

AD Ezreal

I like to keep things simple. In lane, harass with Q. If they are low enough E next to them, Q , Ignite and Auto-attack until death. Chase them partially. Your Q has stupid range. Abuse it. In team fights you want to stay back until all the initial CC has been used. You'll probably die if you get hit by Ashe's Crystal Arrow and get focused. You are good at cleaning up kills, so get your ghost on and chase them like a crazy *****.

So, an enemy has got away with little HP? No problem, just use your ultimate, assuming it's available. Having trouble? Here's a few tips:

1. If you know they are going back to base, hit R where you last saw them. By this I mean hover your mouse over where you saw them and the pretty blue stuff and hit that R. EVEN if the area is covered by fog.

2. If they ganked your team and got away with little hp, shoot your R in the general direction they were going. In my example the enemy Warwick ganked us (Red) and killed one of our team, he then ran with little hp. The black line shows where he was last seen. I ran to the place that would get me the most coverage of where he was and the direction he ran and shot my ult (Yellow). I think I killed him near their blue.

Well, thanks for looking at my guide. If you have any questions don't hesitate to ask. Any tips or improvements for future guides would be appreciated.