Board Thread:Manga Discussion/@comment-34339581-20200816001749/@comment-38952966-20200820093622

I'm pretty sure Pucci altered the ritual to fit his Stand specifically. Made in Heaven is clearly based on Pucci's interpretation of "heaven", and it doesn't really line up with what DIO wanted. I don't know if DIO would've gotten a necessarily stronger Stand, but it probably would work differently than Made in Heaven.

The game Eyes of Heaven postulates that DIO would've gotten the strongest Stand ever had he completed the ritual himself, but Eyes of Heaven isn't canon and even contradicts established canon a lot so its not reliable.