Found this on mmo in forum +20% casting speed, mana cost reduced by 20%, and now increased damage by 10% added to it... I see it as possibly the best general use talent to use that isn't really situational based.
It might actually see use now. If I remember correctly, it wasn't far behind the other two on single target fights with low movement.
ToF would probably still be stronger in any fight with adds. It might see some use in ST fights I guess for folks who don't like the randomness of DI.