I would recommend changing "Frenzied Sabers," so that it stacks up to 5 times, instead of 3 times. Or, changing the percentage from 2% to 4%.
Additionally, "Force Vigor" should increase damage reduction by 5%, instead of the 2% it currently does. Either this, or add some other useful effect to it, like an additional force charge, mad dash, or giving us a Force Leap to ally ability finally.
Now this one is really optional, but it was nice when carnage marauder had at least one DoT ability.