I mean, Black Panther's got four real recurring foes. He's got Man Ape, Killmonger, Klaw, and White Wolf. And in Hudlin's run: Klaw was retconned into something unrecognizable then killed off. Killmonger was retconned into something unrecognizable, had his awesome sense of honor and nobility surgically removed, and killed off. Man Ape has everything good about him ignored, gets made fun of periodically instead (because when you've only got four villains that have had any staying power, you're in a position to make one of them a big joke), then gets killed off. Black Panther's past gets retconned to the point where White Wolf (T'Challa's adopted older brother, who is white) no longer exists. Then Hudlin throws guest villain after guest villain at his hero.