This should give you a general idea of what his abilities are and how this guy is actually an AD Caster. Without further do let's get to the Abilities segment.

Pros + Great poke potential + Can't get outscaled since crit ADC don't exist + Somewhat easy to learn + Doesn't rely on auto-attacking As Ezreal you can poke until your opponent dies easily play him against any matchup since crit ADC's were killed now you can't even get outscaled. Great carry potential too that makes him a great solo/duo queue carry champion.

Cons - You will get punished for your positioning - Not that good super late game - Very early you may have a lot of mana issues - Relies on an ability to deal damage - Auto attacks aren't gonna deal any damage compared to his Mystic Shot - You may have problems farming This champion's weakness comes from his range with Mystic Shot why you ask? Assassins can pick you off easily if you are too far behind and Bruisers will pick you off easily if you are too close. For early game, if you are against someone that can shove hard you will have a hard time doing anything. Be safe and win the game.

Passive:Rising Spell Force

This passive allows Ezreal to gain 10% attack speed for 6 seconds after hitting a target with his abilities

Q:Mystic Shot

Ezreal fires a bolt of energy that deals 15/40/65/90/115 (+1.1 per attack damage) (+40% of ability power) physical damage and applies on hit effects. If it strikes an enemy unit it reduces all of Ezreal's cooldowns by 1.5 seconds

W:Essence Flux

Ezreal fires a flactuating wave of energy at a targeted area. Any enemy champions it passes through take 70/115/160/205/250 (+80% of ability power) magic damage, while any allied champions [including Ezreal] it travels through have their attack speed increased by 20/25/30/35/40% for 5 seconds.
E:Arcane Shift

Ezreal teleports to a target nearby location and fires a homing arrow at the nearest enemy unit dealing 80/130/180/230/280 (+75% of ability power) (+0.5 per bonus attack damage) magic damage.
R:Trueshot Barrage

Ezreal channels for 1 second to fire a powerful barrage of energy missiles, which deal 350/500/650 (+1.0 per bonus attack damage) (+90 of ability power) magic damage to each enemy it passes through. However, it deals 10% less damage for each additional unit it hits. (minimum 30% damage)

Skilling Order #1. Mystic Shot 1 / 3 / 5 / 7 / 9 #2. Arcane Shift 2 / 8 / 10 / 12 / 13 #3. Trueshot Barrage 6 / 11 / 16 #4. Essence Flux 4 / 14 / 15 / 17 / 18

> > > We max Mystic Shot first because it is our main damage output, then we max Arcane Shift because it is our escape/chase(ing) tool, then we max our Trueshot Barrage when we can because it can wave clear when you are buying items, kill low hp enemies or even steal baron/drake(s) and we max Essence Flux last because it isn't that useful.

Doran's Blade + a Health Potion should give you the sustain you'll be needing.

Tear of the Goddess is a must item for Ezreal because your power comes from your Mystic Shot which you'll be spamming a lot. This is why Tear of the Goddess is our first back go to item.

Sheen will be your second must item because your Mystic Shot applies on-hit effects, and guess what? Sheen damage is applied too! So, now you can deal even more damage.

Manamune will be your first finished item, reasons are pretty obvious. You gain attack damage from it, you gain mana from it, and if you transform it to Muramana you'll gain even more damage.

Trinity Force will be your second finished item if you aren't getting stomped. This item is pretty straight forward too, just a better Sheen that gives you movement speed too along with other extra stats.

Blade of the Ruined King will give you life steal, attack damage, and percentage health damage and all of these can be applied by your Mystic Shot! So it is a must.

Iceborn Gauntlet is your go-to item if you are behind or getting stomped by a ******* bruiser or even a fast champion because it gives you armor, a slow and cooldown reduction so you can Arcane Shift more often.

Archangel's Staff is another situational item, but this time it is for you when you are ahead of the enemy, and finished stacking Manamune into Muramana otherwise, it will stack Archangel's Staff first.

Mercurial Scimitar is a must against crowd control heavy teams for example if enemy team has a Maokai, Ahri, Leona combined you are better off getting this item.

Maw of Malmortius is an item if you are against a Vladimir or Ryze botlane or even if enemy team is magic damage heavy and you get rekt easily.

Lord Dominik's Regards is an item specifically made for tank busting. You won't be getting this item much because meta is dominated by bruisers which most of them dont even get that much resist or health.

Mortal Reminder is an item for countering healing heavy champions like Vladimir, Soraka, Sona, Aatrox(new one the old one heals a ton too but the new one mostly)

Kleptomancy Kleptomancy: This rune is essential for Ezreal because he can proc the rune easily with his Mystic Shot and easily gain gold, and reach his powerspike early. Magical Footwear Magical Footwear: This rune allows Ezreal to freely spend the 300 gold he would've used on boots to buy Sheen or Tear of the Goddess. Biscuit Delivery Biscuit Delivery: This rune gives Ezreal a bit more mana, and some sustain overall great rune for someone who spams it's abilities. Cosmic Insight Cosmic Insight: Extra cooldown reduction when you use your spamable ability to deal the damage is really good, always take this rune.

Celerity Celerity: You gain bonus movement speed, you gain attack damage from movement speed. What can you want more? Gathering Storm Gathering Storm: This makes Ezreal even more powerful later in the game pretty straight forward.

1. If your opponent laner is harassing you harder than you are harassing them, just play safe and try to get farms with your Mystic Shot so you won't die, trying to last hit that one minion.
2. Use your Trueshot Barrage to wave clear too! Your Mystic Shot will give you enough cooldown reduction if you hit your shots.
3. When you see that juicy 100hp Annie's booty don't just jump on her because she may be baiting you to a 5v1 (don't be Piper Perri, my dudes) which will result on you dying.
4. Try to ward often, it is your job too to, ward the brushes or gank paths this way the weight of your warding will be split so your support will be able to ward other brushes.
5. Ping when your laners aren't on bot lane! Are they maybe doing drake? Who knows if you don't ping it! This way you can also make your teammates start skirmishes or even team fights, just don't spam "missing enemy" though.
6. When team fighting, make sure your positioning isn't too far from the fight or too close to the fight, otherwise you'll get dived by a bruiser or an assassin.
7. Don't be afraid to use your Trueshot Barrage on drakes or Baron Nashor because you can never know if you will fail if you don't try it!
8. Never Arcane Shift offensively if you don't have any informative wards or at least 1 teammate alongside you.

My humble opinion? He is really good, really good also! Fun to play the sound of landing the sweet Mystic Shot is as good as hitting the fourth shot with Jhin.Have fun with the build! I worked on this more than I worked on any guide I made so I hope "you" enjoyed reading it and using it!