I play Graves fairly often, and I like him, and he doesn't have that big of a learning curve as say Ezreal with his skillshots. Although it is still always a good idea to try him out before spending the 6300 ip. Also, what is your playstyle? That could help determine some good champs for you.

I play mid champs mainly, Ziggs being my favorite. I like champs who use skills to get kills, which ADCs don't so it's hard to get used to. They rely more on auto attacks and not skills.

In playing Corki I've been doing alright in terms of last hits and stuff, but I feel like I'm running out of mana a lot (which after reading around just means I'm bad with him?). I'm building Berzerker's Grieves, Triforce, Bloodthirster, Infinity Edge, Black Cleaver and usually a Guardian Angel (sometimes a Blade of the Ruined King if I'm doing really well).

Apparently Triforce should give Corki all the mana he needs but I still run out fairly quickly probably because I spam his skills instead of auto attacking everything most of the time. I was thinking about building Manamune on him, but that's apparently a bad idea.

Also, I do fine against some other ADCs like Twitch and Vayne (at least early game) but last night I was up against a Taric/Ezreal lane and I had Thresh as support. Ezreal's range was just too high and I couldn't get last hits because Taric would stun me if I tried. I didn't do well that game. How do you build when you're being shutdown so hard? Get more Doran's or should I go for a GP10?

EDIT: Just played a game against a Draven/Soraka lane with Lulu as my support, I know Draven has good early game, so I was trying to just last-hit but Draven's range is still longer than my auto attack range so I couldn't do that well... we lost, no one on our team got a kill...

Graves is an alright choice, and has been doing relatively well recently, but I would suggest looking into Vayne. She has some decent maneuverability, as well as a knock back for cc. The true damage is also a plus, of course. Caitlyn is also a great choice just because she has great range, and similar to Vayne, a little cc and some maneuverability. Also, there aren't really limits in this game on what you want to do. You could really carry with Teemo if you wanted. Any champion is good as long as you are a good player yourself and have the experience to do it. Hopefully this helps you.

I'm no high-elo player (I pretty much only play Coop vs. AI), but a good transition champion you could try is Kayle. Skill-wise her Q is an effective nuke regardless if you build pure AD or AP and a strong early game slow. Her W grants little HP at low ranks (even with a lot of AP) but more importantly grants a scaling speed boost which can helping in chasing or escaping, on yourself or ally. Her E is very mana efficient and the primary source of damage in wave clearing and team fighting and does both physical and magical damage (meaning the opponent needs both MR and Armor). While her R is a great help in escaping ganks, tower diving, or just general team fighting.

Her E allows you to constantly bully your opponent and pseudo-zone them from farming your minions by just AAing their minions. And due to how Kayle behaves when the ability ends will constantly remind you to pay attention to your positioning. the downside is that using the ability will no doubt push the lane. as such this demands a great support with superb map awareness/warding and/or counter ganking. Those with either AS buffs, slows, bush checking or other counter-gank abilites like Nidalee, Lux, Nunu, and Thresh.

She lacks the raw DPS most ADCs have late game but her kit makes up for it in above average utility, mobility, survivability, sustain, and excellent lane clear.

I would say it depends on the elo, but you can definitely play Kayle as an ADC. Her kit enables her to fill the role, albeit not as well as most others. She lacks the offensive range like Caitlyn, the pokes like Ezreal and Cog' maw, or strong escape like Corki and Tristana, but nonetheless she can still perform the role. I never said shes a great AD carry, but she's a nice transition from other roles.

At higher elo a smarter opponent will wait until her e goes on cooldown. but at the same time a smarter kayle will make sure to clear a wave (or whittle the opponents so low where its not smart to counter-engage) before it goes on Cooldown and try to prioritize on minions near champions (not the champion directly so as not to draw minion aggro). Pushing to the tower has the advantage of denying CS for the enemy ADC. while at the same time it can help train you on when to expect gank times and how to escape. And as long as you escape from the jungle/mid ganks you'll also force the enemy out of position and waste their time and farm. The primary strategy I use as a non-support bot lane kayle is to push to to the tower but never actually focus it down. As long as it stands I hinder the enemy's farm giving my team an advantage in the mid-late game.An ADC Kayle won't have many kills, but she should have superior CS while at the same time starving the enemy ADC.

Granted, and I agree, shes far better as a support due to superior healing and ult range and her base healing grows to be quite strong for its mana cost even without AP through the early-mid game. And she's great at peeling the enemy from the ADC.

I would suggest avoid playing the so called "ADC Trinity" if anyone is new on playing ADC. While Ezreal, Corki, and Graves do have great potential, they are extremely hard to play as and all three will fall flat hard late game (particularly Graves). Ezreal is pretty much the hardest ADC to play as since all of his skills are skillshots and his Q is extremely hard to land. I'd recommend playing Tristana as her long range have great late game potential. Ashe is pretty decent due to her slow. Caitlyn is also good since she starts out with a good AA range and great poke potential. Kog'maw is basically Caitlyn in steroids, but a bit trickier to use.

A few tips when playing the ADC:

1) Attack the closest and safest target in your range. Even if it has to be a tank. Don't worry about the squishy targets in the backline, that's the job of the tank/assassin/and mage. And do NOT initiate team fights without your tank or jungler.

2) ALWAYS rush Infinity Edge and Phantom Dancer first. The main priority of an ADC is damage output. For starting items, I'd recommend either 3 HP potions and boots or Doran's Blade. If you have a support that gives you good sustain, then go with Doran's first. Upgrade your boots to berserker's greaves as well.

3) For the other three items, I would probably go for the Bloodthrister or Blade of the Ruined King. If you see the enemy team building lots of health, build the later. If you see the enemy team stacking up armor, I'd go for the Black Cleaver. Regardless, having good lifesteal should be the next priority for the ADC.

4) Finally, for early game, try to last hit to get gold. You'd need a lot of gold to be an effective ADC. The two champions I've mentioned before, Tristana and Ashe, have great on-kill benefits that makes them good at last hitting. A good way to practice last hitting is through bot games. Your goal is to get about 80-100 CS by around the 10-15 minute mark. If you can do that, you are an effective ADC. And try to tell your support not to hit any minions whatsoever and focus on harassing the enemy carry/support.

That's all I have to say. Across from that, I main ADC and it's one of the easiest roles to play as.

I wouldn't call ez the hardest adc - vayne easily has a higher learning curve, and I doubt I'd call her the most difficult either. Ez may be all skill shots, but q's range and low cost make it useful for last hitting even when zoned. His mini-flash isn't used for damage but positioning or escape, which is what makes a decent Ez so difficult to deal with.

From my experience as a main adc, I wouldn't call it the easiest role - a bad adc ends up a quick liability for a team. It requires in-depth understanding, and a great deal of focus. Being a squishy high priority target leaves very little room for error.