Thanks for the feedback!
I forgot to add in why Frostburn is not a good item for this build. This build is geared towards the endgame, and in my opinion Frostburn is only a carry item from start to middle. The slowdown on it is, like you said, negated in the endgame because the extra Shatterglass allows you to burst people down. The slowdown only affects when the opponent tries to run also. Usually, they won't have the chance.
If you would like to use Frostburn in this build,...
Posted: Dec 02, 2014