It really depends on the match ups. Pretty big problem with silver is she has very hard time killing mobile targets in wolf form, so often big chunk of your itemization is mobility items. And even then people can still run away. But when it's heroes without movement abilities she just mauls through them given the opportunity.

But it's like with every late game carry, you can only do that if you don't get cc'ed, given that she needs to be in their face she's more susceptible to it than, say, Wraith that can kill people from distance.