Stop it, just stop. You nerfed Riven enough last patch to put her in a balanced place and I as much as commended you on that but now she is flat out unplayable.
You gave her an effective 0 health per five stat. She would need her sheild to START on around a 3 second CD to be able to make up for that, not for it to have bases that are ten higher. She simply cannot lane now.
Revert these changes or lose a customer.