Nightly Rikti Raids (aka MSR)?

[VV]

Hey all, I'm new to Excelsior. Been over on Indom mostly, and Torch a bit, but I wanted to spread out and check out all the shards. I am a Rikti smashing addict and I was wondering if Excelsior also has nightly Mother Ship Raids? If so, is it at a set time or just random? I love the massive chaos of a good MSR, and the merits, Inf, and xp doesn't suck, either.

[Apparition]

There are no nightly Rikti mothership raids.  However, we do have weekly mothership raid trials every Thursday night at 8:30 P.M. ET/5:30 P.M. PT in Pocket D.  There are also various impromptu MSRs, mostly in the early afternoon.