He has high end reality warping inside his realm and far more options aside from physically engaging Prime, which is the only way Prime can even hope to beat Mephisto.
They also have power sets which enable them to even pose a threat to Mephisto. Their noble souls are among the most pure in the universe, iirc, causing Mephisto to cringe in pain, even. Prime has no divine powers to fall back on or a noble soul to use to his advantage.
I don't know, but he does have a soul, just like the rest. myabe his origin from a real world will have affects in Mephisto's realm. Just like how magic has no affect on him.
Yeah, and the same thing happened in Priests Black Panther run, with Meph gunning for Panthers pure soul and getting his entire linage of souls tethered to him by through the Panther God, causing him so much pain he had to let the souls and Panther go..
Mephisto's kind of like the ultimate addict, always going for stuff that's really bad for him. A What If story even had him succeeding in getting Surfers soul, which didn't end well for him...
Then why does red sunlight have an effect on him and bullets don't? And in DC all worlds are "real".
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I am in your algorithm learning all your mannerisms
I'm already level with God
A million words a second and I know your imperfections, baby
I'm the only future you've got
Speak in diatonics, motivation diabolic
I'm like a religion, better locked in a box
Picture perfect image, more powerful every minute, baby
I am everything that you're not