Alternately, Amazing Girl unites with Master Destruction to fight crime once she realizes that, despite their differing methods, she and Master Destruction are both courageous, idealistic warriors who genuinely want world peace.
Exaggerated: Master Destruction gives Amazing Girl quite the Breaking Speech about how similar they are that it makes her not only do a complete Face-Heel Turn, but she kills him, wears his costume and takes his place, thinking she really is him.
Master Destruction is clearly presented as an Evil Counterpart to Amazing Girl, but it's never explicitly stated by either of them.
"You know, we're not so different, you and I." "I guess not... but what's your point?" "Nothing. Just sayin'."
Master Destruction is trying to turn Amazing Girl to the Dark Side and his first step is to convince her they are similar.
What Amazing Girl did really was in Master Destruction's style.
Master Destruction and Amazing Girl are similar, however their philosophy is vastly different, and where Master Destruction decided he should be callous, Amazing girl went with empathetic, one of the only differences.
Amazing Girl and Spectacular Girl, two very similar people, turns out to have more differences that it may seem.
Alternatively, the heroine points out that she and the villain are, in fact, quite different than the sparse few similarities they share. Or she just tells him to shut up.
Double Subverted: ...just before doing exactly the same thing and saying “Now there's no difference between us, we're one and the same”.
Amazing Girl steps on a cockroach, and Master Destruction tells her that this proves she doesn't care about life either, so she can't condemn him for his murders.
Alternatively, Master Destruction points out something incredibly obvious and not indicative of evil that he and Amazing Girl share in common, such as the fact that they are both human, both breathe oxygen, and both enjoy the same kind of sandwich. Somehow, this still throws Amazing Girl off her game.
Discussed: “Don't worry Amazing Girl, villains always tell heroes we're just like them to make themselves feel better.”
Conversed: “Ah, the classic “You and I are not so different” speech, just as I expected from this comic's villain.”
Deconstructed: Amazing Girl loses it and tries to cut out anything in herself she sees as being like Master Destruction, because of her lingering and not entirely unjustified belief that anything and everything Master Destruction does is evil. This prevents her from doing her duty as a heroine, since "fighting is what Master Destruction does". People die as villains, including Master Destruction himself, do the evil things that make them villains.
Amazing Girl, though she works to be more unambiguously heroic and less like Master Destruction, never has a Heroic BSOD and never stops fighting against evil.
Amazing Girl acknowledges that she and Master Destruction have similarities... but also notes that just because they have some similar traits, that doesn't necessarily make them morally comparable any more than her fondness for sugar makes her anything like Hitler.