Without explanation, the Son of Satan formerly known as Daimon Hellstrom becomes Hellstorm.
He just likes the new name better.
The mythology of this comic, which involves Gabriel the Devil Hunter and a bunch of dark arts practitioners for profit, don’t matter a whole lot, so I’m not going to spend a ton of time on them. In the first issue, we learn that there’s a fake Damon Hellstorm wandering around, Gabriel the Devil Hunter is pursuing him, and the real Son of Satan breaks out of hell to take down the faker.
I generally don’t love Marvel’s back magic comics, but this one is fairly good.
Creators: Rafael Nieves and Michael Bair