The way I would like to see these Masteries added is, for example, the mordrem wolf is deadly when it flanks, we should get a Mastery that lowers the dmg on the flank and another one that increases the dmg you do to mordrem in general. Another example is, when fighting a Mordrem dragon he flies over you and tries to pick you up, if it gets you, you are dropped from a certain height taking fall dmg. gain a Mastery that either reduces the fall dmg or makes it so the dragon cant pick you up as high, which tunrs out to less fall dmg.
Things like that are great for combat when it comes to the Mastery system. Not a Mastery that makes a impossible fight possible.
What do you guys think? Should we get combat Masteries similar to what I mentioned or ones that make impossible content possible?