Champs that need to be nerfed

This is all my opinion, so please no cancer/toxic comments. Some constructive criticism/suggestions would be helpful.

EDIT: How does one change which board their post is in?

ADC need-nerfs:

1. Lucian- simply way too much damage output. Dominates early, mid, and especially late game. Combo of W E Q (R) will destroy anyone.
2. Vayne - also too much damage output. Even if played half-assed early game, still destroys late game.
3. Miss Fortune - Q does too much damage. Not as bad as the above.
4. Kalista - E is very broken. Damage is up to 60 base damage per spear. If she can hit at such a high range combined with attack speed, she can do thousands of damage with her E.

Support need-nerfs:

1. Blitzcrank (stupid broken) - pull range is simply outrageous. Winrates are around 50%-55%. Ult cooldown too low, up to about 15 seconds with 45% cooldown reduction and runes. Combined with E, and a good ADC, is a deadly and broken combo. Only counter is Morgana with Black Shield. Mana Barrier prevents a lot of deaths.
2. Morgana - Q snare is way too long, 3 seconds, as well as 300 base magic damage + up to 90% ability power, can stack up to hundreds.
3. Soraka - there is literally no counterplay for her heal.
4. Janna - an all-around very good and high winrate support.

Mid need-nerfs:

1. Malzahar (broken) - suppression while the target stands on E is almost guaranteed kill. High winrate, and suppression is 2.5 seconds, which in my opinion is way too long.
2. Lux (broken) - E range is ridiculously broken. She can poke and zone you very effectively and then kill you with the Q E ult combo. Ult recharge is incredibly fast. Laugh is also cancer.
3. Ahri - true damage for her Q is so strong combined with ability power. Base damage up to 140 + 35% AP. Her combo of E Q W R R R Ignite will destroy mid lane. Only downside is the skillshot experience required.
4. Vel'Koz - range for Q is an easy poke and zone, as well as slowing you by 70%. The split is very manipulative and hard to dodge. Ult also has too much range.
5. Fizz - being untargetable on his E makes everything a lot harder, as well as being able to dodge kills left and right.. Ult does a ton of damage too.
6. Yasuo - even though he's melee, he zones very effectively. His Q whirlwind range is very long and hard to dodge. Passive makes it hard to poke. If fed, he will be a monster late game.
7. Zed - damage output insane. Ult damage percentage a little too high, and very good early/late game.
8. LeBlanc - ridiculous amount of burst damage. Kit is insanely good. Very hard to counter.

Jungle need-nerfs:

1. Master Yi - lots of damage output. Untargetable on Q. Can cheat death by meditating. True damage on E. Ult is very versatile, can be used to run away or secure a kill.
2. Shyvana - jungle clear speed is ridiculous. Some people can get sated before 15 minutes in a real game.
3. Udyr - jungle clear speed also very high. Can tank big-time late game, as well as having a ton of damage output with the shield and the stun.
4. Elise - damage output very very high, but very difficult to play.
5. Nidalee - Q can do thousands of damage late game. Kit is very versatile and can be utilized in almost any situation.

Top need-nerfs:

1. Nautilus (stupid broken) - his set is just stupid good. His passive is just a free stun. His Q is essentially a Blitzcrank pull, but it pulls him to the target too. He has a shield to escape attacks and deaths, and an AOE slow. His ult is a targetable stun with a lot of damage. Tanking is very easy to do as well, so killing him is very hard. He has a variety of combos that will basically dominate top lane.
2. Malphite - Q does way too much damage and slows as well. Ult is a great engage for team fights and will secure an ace on a 5v5.
3. Nasus - damage output is huge. Stacks can dominate if executed well. Ult cheats death and basically flips a 1v1.
4. Quinn - damage output is also huge. Blind radius is very small and broken. Ult is essentially a good subsitute for teleport.

If there's anyone I forgot, tell me.