If you can be beaten, outsmarted or even somebody putting up a fight against you you're not Omnipotent.WWould you still consider Chakravartin to be omnipotent when he is beaten by Asura the mere mortal?
Examples of Omnipotent are The One Above All, The Presence, Kami Tenchi, God (Supernatural, etc), Etc
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Here's what Nigh-Omnipotent is and you can find listings of characters in fictions that are Nigh-Omnipotent.