Prior to 1.3 it dropped everytime, well an Ultratech xxxx robe dropped everytime. 2 days before 1.3 i farmed all the pieces (legs, robes, gloves, head). It was a gauranted drop from each of the diffrent bosses across FE, D7 and BoI.
In 1.3 they did reitemize the drops and I suspect this may no longer drop or drops somewhere else.
I think I'm going to have to agree with this guy. I decided to farm alot of FE NM this week, and after about 6 runs all I have is a xenotech survivor robe to show for it.
It's removed from the drop tables as far as I'm aware, I see xenotech garbage everywhere - ultratech is nonexistent.