Well, after many decoherent engrams leaving me with nothing, I finally got a legendary engram. The first one gives me this rocket launcher, The Cure. It is decked out in FWC paint schemes and logos, and starts with a 248 damage. It has another 5 increases to damage, some of which need ascendant energy and shards. (FYI: KEEP THOSE!!) Hope to see more legendaries soon.