Okay so I was playing Final Fantasy Dissidia: Duodecim, and I was playing as The Emperor. I set my assist character as Exdeath and thought to myself. "Hmm, blood magick combine with the incredible pow'rs of the void?! That'd be an amazing combination!"

This little thought here, lead me to wonder...
Of all the different Sorcerers, and royalty with powers from hell, and inter-dimensional space creatures, and whatever the heck Cloud of Darkness is, which is the strongest?

Would The Emperor's Blood Magick beat Ultemicia's Time Magick?

Final Fantasy afficianados, I ask to you, which is the strongest, and why are they so?