Ghostium Z
From Pixelmon Wiki
The Ghostium Z is a Z-Crystal exclusively for Ghost-Type Pokémon.
Moves this Z-Crystal can upgrade:
- Any ghost type move that isn't from the Status category becomes Never-Ending Nightmare.
Moves, abilities or items like Embargo, Klutz or Trick can't make a Pokémon drop the Z-Crystal that it's holding.