Frost Strike was nerfed to the ground and the runic power cost went down to 10 Runic Power.
Does this mean that a build like this:
http://wotlk.wowhead.com/?talent=j0xZGgxt0ezoIRcsst0g
is better because we dont need that much Runic Power Generating [Chill of the Grave + Runic Power Mastery]? we will spam Frost Strike alot I guess.. maybe use Anti Magic shell ? both cheap... I dont see a use of Chill of the Grave and Runic Power Mastery in a full Frost Tank build... If you disagree please provide me with your point of view.

-- I am talking from a Tanking Point of View! --