Board Thread:Questions and Answers/@comment-31797534-20170613150752/@comment-2059440-20170613153949

Satan is always depicted as below God in power, due to the strict monotheism of theology concerning God.. however, in settings where this monotheism is challenged we can get the Anti-God, a being that is absolutely equal in power to God and can effectively be seen as the "evil half" of the Supreme Entity (or Entities).

the concept of Anti-Gods began with such things as Angra Mainyu, however it is worth noting this is not a true Anti-God as Angra Mainyu was below God in power and was destroyed at the End Times.

a better example is the Great Darkness from DC or the Darkness from Supernatural.

Satan is simply a monster that embodies evil within a setting, an exceptionally powerful demon and/or evil spirit.. an Anti-God is a malevolent aspect of God itself and usually embody things like "primal chaos" "universal destruction" etc..

Satan is almost always depicted as doomed to being imprisoned or destroyed by God in an End Times philosophy, an Anti-God challenges the very idea of an End Time by stating that "without evil good can not exist" : thus not even God can destroy an Anti-God (or if God could, it would destroy the multiverse both entities reside in as "God" can not exist without an "Anti God" in these kinds of settings).