defense shred auras are reduced by 50%. this is not explained or listed anywhere, its just a thing.
if your goal is to get into anton raid… you’ll just want to have the ability to kill tog without orbs and understand how to hold the bosses. essentially your function is the same as a dark templar but more difficult because dark templar hold CDs are much shorter.
i wouldnt worry too much about trying to be an aura slave. at this point im sure most folks would be happy to take you if it looks like you can deal with tog quickly and they need a holder in the raid.
as for the setup itself – it looks fine, but its hard to recommend a locked-in setup like that because of how strong frankenstein epics can be. as an example conatmination pauldrons pretty much kills the entire SoD set in 1 piece… and if you have 0 epics, chances are pretty good you’ll find something usable… and that will make it awkward to keep around these 85 legendary sets (echon is very good however).
for luke, legendaries dont cut it… although im never quite sure why some folks are irritated by that… the rewards are to upgrade the epics (that you do NOT have if you are in legendaries).