First of all I want to say that I'm not a professional, I just recently start playing league of legends and I like it, so when I think about a new build that is nuts I share it with all the community.

I'm only in bronze, but with Yuumi I have many experience comparing to my rank. Sincerily I don't play too much ranked, but anyways, I hope you like my new Yuumi build to have an easy S or even a S+.

I like Yuumi because it's an easy champ, and as I'm a "begginer", I start to play with easy champs, and now because I know very well how Yuumi works I'm trying different builds with her, like this one.

Do a lot of damage. With

Yuumi the best thing you can do is the runes that I put before and use every time you can the Prowling Projectile.
[list=2]Put many wards. In early game, use your Stealth Ward, this is going to help you very much to take the S. Also, when you finish the first quest, you have the Frostfang, change your Stealth Ward to the Oracle Lens.
[list=3]Destroy the enemy wards. Start putting the wards of your Frostfang when you can and in good spots, the more vision you give, better to your team and to reach the S. Use every time you can your Oracle Lens in bushes to look after wards, and destroy them. Make sure that you destroy them and not one of your teammates, they will only have 10 gold. That is very useless for them.

Why the night harvest?

Pros With the night harvest you can deal more damage to all the champions, getting more and more ability power. As you have too many damage every Prowling Projectile you are going to get an easy S or even an S+. You can heal too much with Zoomies, but I'm advertising you now, this build is not for healing, if you use your Zoomies like 3, or 4 times, you are out of mana, be very careful with that.

Cons You don't regenerate mana for using often Zoomies, the cost of this ability increase as you get more mana, so be careful not to use many time Zoomies. Use it when is very necessary.

As I said before in the threats and synergies, you must ban Senna, or maybe Vayne. I mean, this champs that always are puahing the waves. That is what you don't want. And the most powerful team is with Jhin, because you can slow with your Prowling Projectile, so Jhin can use his Deadly Flourish to root the enemies and hit them too much.

With this composition, some champs of late game I will not use them, like Shyvana, Master Yi because you are pretty good in mid-game if you have done a pretty good job in the bot lane.

Jhin is the best synergy you can use, like I said before, he has his Deadly Flourish and you have the Prowling Projectile combo, so if your jungler comes to bot the enemies are dead, and if your jungler is not in bot (normally I suppose), you can kill someone of them or force them to back.

I will do a permaban Vayne just because as you know, this champ is nuts, pushing the waves, damaging your tower always, and she can leave fast for a possible gank of your jungler, so yes, PERMABAN Vayne. Also Senna is one of the possible bans, becuase with her Curse of the Black Mist she is totally untargeteable.

In fact, nowadays I'm using more the domination runes because like this I can get the maestry of Yuumi and also because like this the game is not too boring. You don't need to use only Zoomies and that's it. I mean, you will need to use more Prowling Projectile to win.

This runes I used them because is funny see your enemies die by a Yuumi, don't you think the same? I mean, everyone know that Yuumi can't oneshot you, but... this build, maybe...

Anyways, if you don't want to try this build, you can always use the normal one, that I put it also in this guide so new players with Yuumi can try it.

I'm using always the domination runes because it's too powerful. But if you try it and for you is uncomfortable, use the normal one, but meanwhile I'm gonna be using my new build... ;)

With Yuumi I usually play with Exhaust and Ignite because I don't know when it's the exact moment to play Heal, but you can choose one of these three.

These three summoner spells are the best because you don't need to use others, like Flash. Most of the time you are in one champ, so the Flash is useless there. Although, Ignite, Exhaust and Heal are perfect because you don't need to move to play them, it's your adc teammate who is going to move so you can cast them.

The only other spell that you can have it is Barrier, all the other summoner spells with Yuumi are usless because you aren't going to need them.

Please don't start buying Health Potion. Like this you are wasting 100 money in nothing. It's better to buy the Control Ward so you have more vision in the early game and also for a possible invade of the other team. If you are in the left side, you can put the Control Ward in the bushes that connect the dragon and the jungle. If you are in the right side, I will reccommend you to put it in the bush near the blue.

The Tear of the Goddess is the most important object to rush, because if you have this in mid game you can have the seaph's embrace with the most AP. Also, you must buy this item in all of your games because the seaph's embrace id too OP giving you mana and AP.

There are some items, like Void Staff that are optional, depending on the game and your enemies. But anyways, the other items are really necessary in my opiinon.

The most important thing to now is that when you finish your quest of the Spellthief's Edge, you must go back, buy the Oracle Lens and start looking to enemy wards,

I'm gonna repeat, DON'T BUY Health Potion IN EARLY GAME. You will not used them, so you waste 100 gold for nothing. Buy a Control Ward that is more useful, even more with the nerf to the jungle.

The best partner you can have in bot is Jhin, he can use his combo and use your Prowling Projectile the enemies are going to die too much. But, with this combo you must push in the early game so the enemy bot lane can't do anything.

Put always your Stealth Ward in the river, because you are going to push, like this the enemy jungler can't gank you, because you use Zoomies and the Jhin goes faster.

You don't need to farm minions, you are going to farm some gold with your Prowling Projectile to take gold for Spellthief's Edge. And also farm some dark harvest of your runes.

The enemy jungler is going to camp you very much, so pay attention to the map sometimes because of not you can find an ugly surprise. The good think about this is that your jungler can take the rift herald with the help of your top laner]] meanwhile.

Sometimes, when the bot lane os pushed, you may join to have a walk with your jungler and leave your partner to take some gold of the turrets. This can be in any minute, you only have to force a back to the enemies and go for a walk with your jungler, visiting mid and farming, but just a little bit because you are stealing experience to your jungler.

In the mid game you will not need to buy some consumable items, just for some Control Ward if the enemies break it.

In the team fighting you are really bad, you can use only once your Zoomies or you lose all your mana and also use your Final Chapter just at the beggining. Obviously, your Prowling Projectile use it if its possible. It will be nicer if you tarjet a champion who have plenty of health. You are not looking for kills.

The most important objective is the dragon because you can take it very easily with your jungler. It's like a free drake. In this part of the game, you will search for stealth wards that have the other team with your Oracle Lens. This is very important for two things:

Your S+ or S, it's 100% necessary and very important.

[list=2]To take the drake, or the baron without be seen.

In late game, the best thing you can do is stay with the ally that carries the game, so you can help him always, take some takedowns, and more like this, very important for an S.

In this point of the game I will reccommend to sell your Shard of True Ice, but just when you have 5 objects, not before. That is very important to have it all the game, to put wards.

In the teammfights you are going to do the same role, be safe, use Final Chapter at the begginning and always Prowling Projectile. Be careful about Zoomies becuase you heal very much, but also you don't have mana regeneration.

The inhibitors would be fine to destroy them, but only finish the game if the other team is dead or you have too many minions to kill them all without losing. Then, if you can take the baron safety you win the game. The enemies can't do anything else.

Pay attention very much to the baron , put a ward in ther always, so the other team is not gonna take it, because all your teammates can go there and steal it and fight together.

And this is the end of my new build of Yuumi. I hope you are going to enjoy it like me, and tell me in the comments what do you think about this, improvements, anything would be fine.
Thank you for reading all this guide!