Champion Balancing Changes (what I would do)

Syndra ultimate cooldown of 120/100/80 seconds reduced to 110/90/70.

Teemo 330 base movement increased to 340.

Zilean needs a bigger weakness. Armor per level +3.8 reduced to +1.2. Health per level +82 reduced to +58. Attack speed per level 2.13% reduced to 1.5%.

Taliyah ultimate Weaver Wall now additionally empowers her with 10/15/20% damage reduction for 5 seconds starting at the initial cast.

Azir base movement 335 reduced to 300. This allows Azir to maintain his powerhouse ability, while providing a nerf to his overall strong chase and escape.

Fiora Bladework attack range increase removed. Fiora Grand Challenge target range 500 decreased to 300.

Kassadin Void pulse gains 2 stacks per enemy champion cast. Kassadin passive magic reduction of 15% changed to 10/20/30%.

Fiddlesticks passive movement speed length of 1.5 seconds changed to 1.5/1.75/2 seconds. Fiddlesticks ultimate Crowstorm cast range changed from 800 to 700/800/900.

Morgana Black Shield cast range of 800 increased to 950.

Vi passive Blast Shield 10% of maximum health increased to 12/13/14%. Length of time from 3 seconds to 5 seconds.

Kai'sa Health per level +80 decreased to +50.