We all know that Cataclysm will intoduce the mastery system which will improve upon a character the more points they put into a spec. But, what about tanks? Warriors and Paladins both have a set tanking tree so those masteries will probably be like armor, avoidance, etc. But what about Druids and DKs who both have dps viability in the same trees as tanking. If they are dps focused, tanks lose out and if they are tanking focused, dps lose out. Was wondering if anyone hase any ideas on how Blizz will work around this?