Why are you forcing Taric into bot lane?
I know he was originally released as a support, but he can also solo top and he's a very good tanky fighter.
https://www.youtube.com/watch?v=4F_-2Ono2l0
Please take notes from the Mordekaiser rework... How about you make Taric's W shatter when you cast it a second time while it's active (if it's self-cast)? Give it back its AoE armor scaling dmg & armor pen please :'( You can make it work exactly like Mordekaiser's W, shattering on second cast/after the shield breaks (makes sense).