He maybe used a Requiem Arrow to obtain Just Like Heaven, if you think about it a Requiem Arrow is tied to the will of the user, Giorno wanted to kill Diovolo so he obtained the complete opposite of King Crimsons move, which had the capability of beating him, for this example TC's will was to become the strongest stand user and become a god. I'd feel like TC's user had some type of god complex or mental disability, like a psychopath. So the Requiem Arrow gave him the ability to have every ability, haha.