Hi,
By the looks of your build, it seems like you have a lot of powers to save yourself from a bad situation. Reconstruction, Dull Pain, Instant Heal, Moment of Glory and Shadow Meld, plus DB knockup and/or sweep combo, inspiration and your teammates.
Your Shadow Meld is probably perma with a 140+ recharge rate, do you need MoG?
Or lose the Soul Mastery Pool and take Body Mastery. Focused Accuracy with a set of Gaussian's since it's not slotted in Blinding Feint; Laser Beam Eyes for your set of Apocalypse purps and Physical Perfection for extra reg/rec (Toss a Regenerative Tissue +regen IO in there).
You can probably get your Melee, Ranged and AoE def up to around 30% which would be an improvement over just S/L.
Good luck!