Which is enough to maybe survive one more attack (two if you pair her with Brozerker). In the mean time, she might never get a chance to do any damage herself.
Understudy's shield is a nice little defensive boost, but I wouldn't put any primary rune stats into shields. I'd try to get good secondaries and tertiaries instead, and focus your primaries on Starting Energy and Movement Speed like every other hero these days, with some Cooldown Reduction thrown in.
Like I said in the post your replied to, tank runes are not the best choice for her. Ocean (or possibly River) is much better.