Re: Off-beat villain choice: Taskmaster!
It could still work, if Cap has Widow, Hawkeye, Fury and any new characters involved, it actually makes him look pretty danged unstoppable, rather than if it was vs the whole Avengers and people have to wonder why Iron Man doesn't just blast him, and scrunch their noses at the absurdity they use to explain Tasky taking down IM/Thor/Hulk.
WW TV Show Ideas
"... because he's the hero that we need right now, even if we don't deserve him. Because he's our only hope against the cold dark cosmos. Because he's not our weapon... he's our shield. Our valiant defender, an unmovable guardian. A man of power, a man of virtue. A Man of Steel." #FishburneVoice
With a Ph.D in Metascience