Use sword in secondary hand

It would be amazing if the sword could be used in the secondary hand, but that it has certain characteristics, to begin with that it could not be hit at the same time with the 2, that you have to hit one and then with another, also that when it is hit with the sword in the secondary hand will only inflict half the damage, and that does more knockback than using it in the main hand, like a block and a half more than with the main hand, if this option is added it can give much more variety in pvp , and also that if a sword has an enchantment, but not another, you don't have to choose between one or the other, that if you have sharpness in the main hand you can hit and do the maximum possible damage to the target, while using a sword in your hand secondary that has fire apect or knockback