My name is Rewynd, and I've been an Ekko one trick since Season 10. I peaked diamond 1 last split, and peaked rank #183 Ekko in NA , with about 962K mastery points, and I am currently a diamond player. I stream live on Twitch at https://www.twitch.tv/lolrewynd, and really love this champion, so I decided to put out a guide. Besides me having a lot of experience on Ekko in both jungle and mid lane, I have over a 60% Winrate on my main account, with an average KD of about 9/5.

Ekko is a very fun champion who scales well, is bursty, fairly safe, and is very skill expressive. He's pretty easy to pick up, but has a very high skill ceiling which makes him feel very rewarding to play. He is generally really good at skirmishing and playmaking. Another positive to him is that he doesn't have any one specific playstyle. He can be played aggressively, safely, and a bit of both.

Pros:
Scales Well
High Skill Cap
Bursty Assassin
Good Waveclear after 7
Hard to kill if he plays safe

Cons:
Near-Guaranteed Death on CC
Low early damage
Very reliant on W stun in teamfights
Mostly weak until 2-3 Items

E1-Q-E2-Rocketbelt-AA This is the main fast combo you should be using most of the time

E1-Q-E2-AA The combo you use before you have your rocketbelt built

E1-W Doing this will cancel your W animation

W-E1-Q-E2-Rocketbelt-AA Fast combo but starting with W

E1-W-E2-Q-AA Way to get a trade off, and either get a shield to keep

E1-Q-R-E2-Rocketbelt-AA Very situational, but it works when you can use it.

Ekko's Bread-and-Butter combo is E1-Q-E2-Rocketbelt-AA. E1-Q-E2 Is considerably faster than E1-E2-Q, and lets you hit a lot more E2's than otherwise possible.

Ekko can animation cancel his Q and W with his E1 as long as he presses them about the same time with the E1 slightly before.

If Ekko does not level his R, the after-image will be hidden. This allows you to save your ult for when you need it, and surprise them with it. This trick forces the enemy to make a lot of mistakes, and can get you kills that normally would never happen.

You can E-Q-Flash and your Q will come out AFTER the flash allowing you to significantly extend the range. This same effect happens with Rocketbelt and stacks with flash to go even further: E-Q-Flash-Rocketbelt.

Ekko Afterimage shows up 4 seconds before his ult does. Do not get baited by this and if you are against the ekko, this means you have a 4 second window before it's back up.

Ekko with Rocketbelt, Nashor's, and Deathcap can outsmite any jungler except Nunu and Cho'gath. E-Q-E2-AA(Smite if you are JG) allows for easy steals. You can also throw q over the wall, e in and proc passive to steal as well.

W gives vision, so you can use it so you dont need to facecheck bushes.

After the Nashor's Tooth buff, I believe you should rarely go lich, unless you play in Korea or China. The reason Kr and Cn players buy lich instead of nashors is because lich has a better build path, even if the completed item is worse. In these regions, the games are decided much quicker than they are everywhere else, which requires them to have an earlier spike like lich bane does. Before the nashors buff, the only real advantage lich had, besides build path, was the ability haste. This now no longer matters, because both have ability haste now, meaning that as long as you complete your second item, building nash will always have more value than building lich.

The notes for the threats sections have my general thoughts and tips for each matchup. If it isn't there, I either overlooked it, or it isn't too much of a worry. Generally, shove in melee matchups and play to trade when they use cooldowns. Into ranged matchups, do your best to survive and not get chunked out, and after first or second back, you can start to look for trades. The worst thing you can do into ranged matchups is get poked out hard early laning. In my experience, giving up some exp and gold early levels to survive in lane longer and get kills after the first few levels is better than wasting all your mana and hp very early. If you have TP, you can play for these early cs, and TP back when you get too low on resources. Early dorans ring goes a long way, and I get it almost every game now. If a ranged champ runs behind your minions level 1, E start can let you get a good trade and setup for a kill within the next couple minutes.

Ekko Laning phase is weak, and he has a lot of difficult matchups, but if played properly, he can navigate through them to survive and scale.

You want to decide early whether you are going to shove in early, let them shove to you, or you want to Cheater recall. Into easy matchups, cheater recalls can set you up for insane snowballs. A cheater recall is when you slow push the first 2-3 minion waves and then hard shove the 3rd or 4th respectively and then reset. This will force your opponent to stay in lane with an item disadvantage or force them to reset and give up minions, exp, and wave control.

You want to play around your jungler, because mid lane is the jungler's support, so play your minion wave to match your jungler and try to match your jungler's reset timing. Do your best to be the first to fights, and try to set up your jungler. It is not his job to help you, its your job to help him.

The most important thing for Ekko in laning phase is to get to level 7/9 and be able to clear the casters with a single Q. Once you have gotten to this point, you are able to start perma-roaming without threat of losing out on CS. You can leave one or two minions to get there quicker.

When it comes to roaming, you need to identify your win condition, and play to it making sure to put all of your resources into it. If you have a fed botlane, look for dives, to counter enemy plays, and to further their lead. You want to do the same for top lane.

As soon as you can, you want to get into a side lane to farm and look for picks. A very strong strategy while side laning is to stack up waves with a slow push, and look for a play elsewhere. You can keep whoever comes to catch the wave from moving to the play, and if noone goes, they lose a lot of gold and experience.

Always buy a Doran's ring and dark seal on first reset. The spike they give together is so crazy on jungle that you can't really avoid doing it.

You want to try and clear opposite of most matchups, and gank lanes who can set you up. Don't be afraid to gank. Your W gives you a very strong way to either force summs or get a guaranteed kill.

Generally, just try to path to either farm efficiently, counter gank, or get an uncontested gank. Play towards the winning side of the map, because ganking a behind lane is rarely a good idea. It will often lead you to getting double or triple killed, and will make the game much harder. If you have no winning lanes, farm your best and try to get good picks wherever possible. For solo Q, see who is performing poorly on the other team, and if they are on a loss streak especially, try to kill them on repeat. You can tilt that player very hard while getting fed at the same time and when through mental warfare.

Ekko jungle is really good right now. He has good clearing times thanks to the jungle changes, especially if you build nashor's tooth, and he has more opportunities to gank or countergank than before, leading him to be quite strong in the jungle. I would personally rank Ekko jungle at A+ in solo queue.

Ekko mid isn't the worst after they buffed him, but he still struggles heavily into most popular picks in the meta. It is viable, it just isn't his best lane anymore.

It's not good and it's never coming back. Stop wishing man.