As soon as you start using "omni" you start having problems. *Create something you can't destroy* Or in this case *Create something the other guy can't destroy* Which of them isn't omnipotent, the one who can't create such an item or the one who can't destroy it? *Either way, one of them is no longer omnipotent.* ---------- The old pantheons had a way round this problem, while they had limits to their powers they also had rules to obey, including: >no god may undo what another god has done - [Ovid, Metamorphoses](https://archive.org/stream/metamorphoses01ovid/metamorphoses01ovid_djvu.txt) Which meant that if one god had created it, whether the other could destroy it or not was irrelevant, they wouldn't be allowed to try.