>>149927806
>The antichrist is supposed to be satan's son, not some random human dude's, right?

AntiChrist as a specific entity instead of a name for false messiahs first appeared in the Odes of Solomon and Ascension of Isaiah where he was depicted as Nero raised from the dead by Satan not his kid. Origen was the guy who made him Satan's son.
Post Nicaea he's mostly just thinly veiled jabs at Ebionite and Arian Christians claiming that Jesus was only one of the Messiah/True Prophet's incarnations and Julian the Apostate. The first and last non-Christian Emperor after Constantine who actually did try to rebuild the Jerusalem Temple to refute Christianity.
It'd be completely possible for Nymo to be the potential anti-christ that would fill a major antagonistic role in revelations.