One of your many issues with balancing
Is giving Tanks high damage scaling.
These are suppose to be tanks.
Not bursters.
Stop giving champions like Garen, Maoki, Shen, Leona, Jarvan especially, and several others the capability to do damage on par with ADCs, assassins, mages, etc.
Tanks are not meant to be damaging classes.
Stop trying to make them damaging classes.
Give that high damage scaling to the actual damaging classes.
And stop being a piece of shit of a balance team.