Of course, it could be unrelated to MOTU, like a Hot Wheels set, but the name is very MOTU-esque. As an age old Universal Monsters fan, a Horde mummy wouldn't be unwelcome, especially with the Horsemen doing the honors.

As for Hordak, no question he's Nosferatu, the original cinematiic Dracula. The resemblance is unmistakable.