To give a bit of context myself and my wife are playing together so we aren't having to solo the game. I am running Dual Sword and she is running a DPS Mage build. We have 0 issues crushing through mobs that are higher level than us as we are level 63 currently.

However, we are currently at the point in the story where you fight Boss Roga and his basic attacks are 1 shotting me from full for over 1000 damage. Big issue we have had is just locating or farming resources for body armor to increase our defenses so I feel like our defense stats are a bit behind but would that make that much of a difference or is there something else I am missing.

I am running an Agility DS and she is full Int on Mage.