"4) She-Devil - Evil, other-dimensional queen from Namor's early 70's title. Pounds Namor, literally, into the ground. During the fight, Namor realizes she is out to kill him and admits she has the strength to. She-Devil has long speech over Namor's unconscious body about killing him, but then decides to go ransack Atlantis and order Namor's death from there. Namor revives as he is being carried away by her guards and he manages to latch onto her ship to Atlantis. Never seen Namor so dominated by a foe as he is here. In followup ish, She-Devil teams with Orca to pound on Namor some more, in fleeing for his life, Namor ends up poisoned and needing to be saved by Reed Richards, which is when he switched from his Speedo outfit to his goofy 70's costume with the wings.
Yeah, she was a goddamn badass."
I'd agree - she pretty much owned Namor six ways to Sunday and could have killed if she wanted. She overwhelmed him with brutal strength and speed. The panel with her spinning him around by his foot and smashing him face first into the ground is pretty harsh.
Actually other than her dopey name and costume, I wish the writers would have kept her around. I think every hero needs at least one adversary that is more powerful than they are and she was perfect - an underwater monarch of her own realm who could thrash Namor in his own element. It's always good to see one of your favorites get a good whuppin' now and again.