Yes. it won't be up all the time mind you, but it certainly helps.
Also, as you progress, use flash more. I usually start with one per mob. It basically insures they stick to you. Toss a riot blade in there every so often if you want to top off MP.
shield lob is definitely the way to start. If people are not following the kill order, flash, and cycle the rage of halone combo through all mobs and u should still be able to hold hate.
