Power Bash needs a buff, because in the current state its pretty much always worse than the lvl 3 and taking it is often worse than going for another lvl 2/3. Giving it armor ignore means its damage will be noticable against higher lvl enemies, which should be the case for a lvl 4. The skill ignore is debatable, but I think a lvl 4 should offer something beyond just more strength to your build. Defensive Posture could be buffed by making it not exhaust, but I think reworking it to make different builds within the skill line viable is the better way. With these changes I believe going 1/1/1/3/3/4 is a decent alternative compared to the standard 1/1/1/2/2/3 build. 1/1/1/2/2/3 delivers massive damage on target, but 1/1/1/2/3/4 allows lower on target damage combined with decent damage on the free engage.