Heres an example of riots, GODLY balance team!
Back when lee sin and elise were dominating the game, Riot took the right move to nerf them.
This is what they did to elise:
Q - Neurotoxin
Base Damage: 40/80/120/160/200 ⇒ 40/75/110/145/180
Maximum % Health Damage vs Monsters: 60/120/180/240/300 ⇒50/75/100/125/150
Q - Venomous Bite
Base Damage: 60/110/160/210/260 ⇒ 60/100/140/180/220
Maximum % Health Damage vs Monsters: 60/120/180/240/300 ⇒50/75/100/125/150
E - Cocoon
Stun Duration: 1.5 seconds ⇒ 1/1.25/1.5/1.75/2 seconds
E - Rappel
Cooldown: 26/24/22/20/18 seconds ⇒ 26/23/20/17/14 seconds
R - Spider Form
Spiderling Health (Rough Values): 90260 ⇒ 85390
Spiderling Health (Real Values): 90/100/110/120/130/140/150/160/170/180/190/200/210/220/230/240/250/260 ⇒85/95/105/115/125/135/145/160/175/190/210/230/250/275/300/325/355/390
Heres what they did to leesin: removed attack slow
As you can see they know how to balance!