Stand power of Enrico Pucci from JoJo no Kimyou na Bouken. Manifests as a black-and-white humanoid with a headpiece vaguely resembling a crown. The symbols "GΔCT" are repeated in bands around its body.
Possesses the power to remove special "discs" from people, containing either their memories or Stand. Commands can also be written on blank discs and inserted, compelling the victim to fulfill them.
Namesake is the English rock band Whitesnake.