This build was created in one night for the Bricksculpting Discord Summer Challenge. Yes, this build resides upon a PAB cup, and it works perfectly!
Video: https://imgur.com/a/neural-devourer-kT7nqHq
You can watch how the build came to be here: https://www.twitch.tv/videos/2817025513
Reminds me of a Mass Effect Reaper.
Ohhh! That looks cool!. I never played the game, but it seems I might need to add it to the list.