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10Black Manta

Aquaman's arch-nemesis is a scientific genius who's built his own weaponized suit and helmet with a jetpack. He's got an impressive staff complement of tough seafaring henchmen and he even has his own underwater "Mantamobile" - a submersible ship that's super fast and armed to the teeth.

With those stats, Black Manta has the potential

to rival the likes of Lex Luthor as an A-List bad guy. But aside from cutting off Aquaman's hand and killing "Aquababy" a few retcons ago in 1977's mostly forgotten classic, Adventure Comics #452, he's never really lived up to his full potential.

Next 9 Vandal Savage

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