Every weapon from or associated with a raid has an ornament so far. They're Legend of Acrius, Telesto, Sleeper, 1K Voices, Tarrabah, but not Anarchy. Honestly, almost all exotics have ornaments, but no one of the best weapons on the heavy slot. I have some ideas for its appearance. Maybe it can resemble the Black Armory weapon that was on Insurrection Prime.