User blog comment:Xyclone010/Mastery Discussion/@comment-5077844-20140817092548/@comment-24862418-20140817131925

Thanks for your reply.

This blog will post some idea, what it would be like in S5. I'm working on an idea: building Mastery during match.

I wish they would replace lifesteal/spell vamp with other mastery. They did very well on the Offense and Defense Tree but not much on Utility.