Would A Double Blade Executioner Sword Be A Good Fictional Weapon?

Say there's a story where the villain is really strong, Like he's as physically strong as Thanos, And he was tasked with killing all life in a planet (He has an army too btw), Would a double blade executioner sword be a good weapon? I say he's stronger than average because executioner swords are heavy,... show more Say there's a story where the villain is really strong, Like he's as physically strong as Thanos, And he was tasked with killing all life in a planet (He has an army too btw), Would a double blade executioner sword be a good weapon? I say he's stronger than average because executioner swords are heavy, And it's specifically an executioner sword because they're meant to cut through people better than the average sword, Like, ENSURE that the person at least loses a limb and not just give them a cut, Even if deep, That they could recover from (Also because it'd look pretty badass but that's not the point). Would it be effective or is it better to just have a battle axe or normal double blade sword?
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