How would I know when I reach that? Is that the same as reaching 30% haste raid buffed w/o IV?Take this glyph when you're over 50% haste, raid buffed, with icy veins up.
---------- Post added 2012-10-02 at 08:36 PM ----------
Furthermore, if you don't have the glyph, is it better to not use IV during TW?