St. Jaygarcia Saturn made a rather showy appearance on Egghead. One might have expected an armed escort as he walked off the ship, but that's not what happened. Instead, he made landfall on Egghead through a satanic pentagram. When the pillar of fire disappeared, he was decked out in his awakened Devil Fruit form, a centaur-like mix between a man and an Ushi-Oni. His appearance may lead one to believe Saturn used his Devil Fruit powers to make the pentagram. Magic circles aren't a known power of ordinary One Piece humans or the Ushi-Oni. However, it is something associated with devils.
Source：https://www.cbr.com/one-piece-chapter-1094-potential-new-power-system/
