Shaco

Invisible, high damage, more ways to CC you than IQ needed - my go to ban.

Blitzcrank

Q, E and R stop you from jumping onto someone, if you get caught by him say goodbye to having colours on the screen

Nautilus

Passive, Q and R stop you from jumping onto someone, if you get caught by him say goodbye to having colours on the screen

Zyra

She has a root that is somewhat easy to dodge with your W, but her plants do a lot of damage which is hard to deal with early when you have almost no mana regen.

Lux

She is a bigger threat to the ADC than to you

Alistar

Alistar jumps between Even and Extreme based on the skill of everyone on the lane. If yasuo is the adc and your adc is kinda bad never get off until he used knockups.

Nasus

Wither does absolutely nothing to you since you can just jump on someone.

Brand

Big damage, and a stun. You can evade his R by jumping on someone though.

Cho'Gath

Knockup, silence and execute R. Yuumi has really low max hp which means he can eat you when you have ~45% hp.

Soraka

Very annoying champion to play against her silence can really mess you up if you get off at the wrong time, she is way better early game as she heals more and doesn't use nearly as much mana.

Morgana

If you get caught with her Q you're dead but the rest of her abilities barely do anything vs yuumi.

Zilean

Don't get caught in his stun and he can't do anything against you.

Leona

A lot of slows and stuns, don't let her hook on you or you're dead.

Draven

A lot of damage at high range, with a tiny knockup that will stop you from jumping on your ADC. If your ADC lets him poke, you will be spending 100% of your mana healing the adc during the laning phase.

Mordekaiser

You won't see him during the laning phase (unless some madman plays him in the jungle). If he ults someone you're on, you fall off and are left alone to wait until they come back, this means death if you're babysitting a hypercarry and your team is dead.

Amumu

If he hits you with the Q you might still survive as he deals almost no damage, but he usually will have 4 teammates nearby waiting to kill you. Avoid his Q and be on a teammate when he ults.

Kog'Maw

He can't do anything against you.

Janna

Very easy lane, she has damage and tornadoes but as long as you avoid those she has a bad time

Zed

If he catches you without a friend you're dead.

Akali

If she catches you without a friend you're dead.

Ahri

If she catches you without a friend you're dead, otherwise she's not a threat to you.

Aphelios

Darius

If he catches you without a friend you're dead.

Twisted Fate

If he catches you without a friend you're dead.

LeBlanc

She has 50 million risk-free ways to kill you and the adc if she's ahead. Never get off to proc your passive against her.

Thresh

His Q and E are scary but he provides almost no damage. Also you can walk into his ult to take the slow and jump on someone to negate the whole point of his cage.

Malzahar

If he ults you, you die otherwise he can't do anything to you

Fiora

If she's fed you can't do anything other than ult and hope your team can outdamage her lifesteal

Pantheon

High damage, point & click stun = stay away, let your adc take the damage and try to keep pantheon away with your Q. (Ward bushes)

Veigar

If you get caught in his cage, he can't kill you alone, but with a friend he guarantees your death. Never get off someone to use your passive if his E is not on cooldown.