Riven's E is called Valor
Not pussyness. Grant her increased shield when dashing towards/through champions, and decreased shield when dashing away. That would also make her kinda more healthy since it's more rewarding to go in balls deep and not keep her escape, than to go for a short trade and shield out.
When I say increased shield, I don't necessarily mean higher values than live. I just mean, her shield should be more rewarding when dashing towards a champion than dashing away.
: "A sword mirrors it's owner"

W = 
or
which also provide CDR for her kit.
:"Get the fuck out of my property, boy."
+ 15 AD and 5% CDR from Runes & Masteries, and a slot for a defensive item. There you go, 1000 shield per 10 seconds