When it comes to annoying champions in League of Legends, there are plenty of them out there. However, there are a few that are universally hated by all LoL players. Players with more experience in the game will certainly know what champions annoy them the most. However, for those who may not know as much about the game, here are 5 of the most annoying champions to play against in League of Legends.
Kled

Kled is a champion that can dominate any team fight. Not only does he excel in combat, but his strong engage can easily allow him and his team to dive into the enemy backline to pick up an easy kill.
He is also rather annoying champion in League of Legends because of his passive, which allows him to gain new abilities that can do a ton of damage upon mounting Skaarl. However, what makes it most annoying is the fact that once he re-mounts, he gains back a large portion of his health, easily allowing him to turn the tide of any fight.
Yuumi

Since her release, Yuumi has been a universally hated champion and is recognized by some as a must-ban. When attached to a strong carry champion, Yuumi can make them very hard to kill and practically invincible.
With her strong healing and movement speed on her Zoomies ability, she can be sure that her allies are always at full health. Her Ultimate, Final Chapter, is particularly annoying because it offers heavy crowd control with a large area of effect.
Blitzcrank

Similar to Yuumi, Blitzcrank is on most players’ must-ban list because he can be so annoying. Ironically enough, the champion isn’t very good at all, but he is just a pain to play against. One thing that makes him annoying is his hook, with which he can grab opponents that are caught out and give his team an easy kill.
He can also speed himself up with his Overdrive ability, allowing him to close any gap on his opponents. This makes Blitzcrank a difficult champion to try and escape from. Also, his Ultimate ability, Static Field, is very annoying since he can silence opponents so that they can’t fight back. Players will realize that they are in for an annoying team fight when they can only auto-attack.
Zoe

Zoe is a mid-lane champion that used to be very popular, but after some nerfs fell out of the spotlight. However, that doesn’t mean that she can’t still cause trouble for her opponents. With her Spell Thief ability, she can pick up summoner spells to use later. This means that she can have two flash spells, two ignite spells, and so on, which can make for serious trouble.
She also has another ability, called Sleepy Trouble Bubble, which makes her an even more annoying champion. With it, she can hit opponents from seemingly out of nowhere and put them to sleep, crowd controlling them. This leaves whoever is hit wide open and susceptible to attacks, which allows Zoe and her team to pick up some easy kills.
Master Yi

Master Yi, while an annoying champion, can also be fairly powerful in lower-ranked games. While he can put out a lot of damage with his passive, Double Strike, what makes him particularly annoying are his Q and Ultimate abilities.
With his Q, Alpha Strike, Yi can become untargetable while dealing damage to multiple targets. This allows him to easily pick off enemies and little can be done about it. His Ultimate, Highlander, assures that he cannot be slowed as well as offers increased damage and movement speed. This ability is the bane of any ADC since Yi can easily make a play on an immobile carry and pick them off with little trouble.