Omnipotence entails maximal ability, with restriction to logic. Having two omnipotent beings gives us a paradox however, for what if Omnipotent being#1 wants b while OB2 wants a? For example suppose OB1 wants humans to live on while OB2 wants the human race to die? It's a paradox. Logically, any omnipotent being could cause the human race to become extinct or live on. Therefore both beings logically can act upon their wishes, but if they wish two opposite things one or both of them are prevented from doing what they want to do. Thus they cannot do something within in the realm of potential reality and are not omnipotent.
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