>>102503220the key to a mary sue isn't being good at everything
it's that they are instantly good at everything, and everyone instantly likes them
Batman has to train ridiculous amounts to be good at the various things he's good at, and it makes him sacrifice a LOT.
He's a terrible dad.
He's almost abusive towards Alfred
He let not one, but TWO of his robins get killed.
He can't maintain a romantic relationship to save his life.
He doesn't understand humor.
Almost everyone that meets him hates him.
He fucks up a lot and people die.