So I used midnight gossamer to become an atlach nacha. The stats are impressive, but there doesn't seem to be much more to the form than that. You have the usual webbing and venom and internal mutations, but nothing unique. Did I miss anything? I tried losing to the atlach nacha in the Ebon Labyrinth to see if that would cause a transmutation like losing to a wendigo or yuki onna. All it caused was a horrible death.