Galvanize

Hi all been using mids to try and put together a build purely for pvp but seem to be going around in circles, if any1 has any advice on what epics i should take what i should possibly drop out, how i should slot etc it would be much appreciated.

Big congratulations Maso, whats next? A Mastermind?

Any advice on how to slot gang war plz?

How important is hibernate and frozen aura? (making my first tank ice/ice).

PS: should i bother with build up?