Board Thread:Questions and Answers/@comment-30220587-20190712001004/@comment-32440156-20190726185110

All monotheistic deities aren't necessarily omnipotent. In fact most examples in fiction are nigh-omnipotent. The examples in which anti-god is equal to or stronger than monotheistic deity, those are the said supreme beings aren't omnipotent but nigh omnipotent. Metapotence is straight up omnipotence, not just an ordinary omnipotent power and can defeat an anti-god any day. Anti-Gods are at best nigh-omnipotent and thus are no match for metapotents. This is because an omnipotent being no matter how evil will still be considered as the supreme being due to being the strongest that there can be. eg- Lord of Nightmares is a purely evil omnipotent entity yet she is not an anti-god because of her omnipotence.

So, an Anti-God can never defeat a metapotent and this doesn't depend upon the writer.verse. If a metapotent being is defeated by an anti-god then the being was never metapotent to begin with.