I'm not sure exactly, but it might be in a specific Marvel comic crossover event. You might need to dig through some of the major storylines to find it.
To be honest, this kind of event is often specific to certain limited series or special story arcs. It could vary depending on different comic runs and creative teams. But I can't pinpoint exactly which one off the top of my head.
There could be characters like Reed Richards. He is often in conflict with Doctor Doom. Richards represents the scientific and heroic side, which contrasts with Doom's more megalomaniac tendencies.
Well, in this graphic novel, Deadpool's wacky and unpredictable nature clashes with Thanos' power - hungry and often brooding demeanor. It makes for some really interesting and comical battles.
Well, Naruto could potentially adopt Doctor Doom's sense of determination. In fanfiction, Naruto might become more calculating like Doom. He could start using his enemies' weaknesses more effectively, similar to how Doom strategizes against his foes.
One possibility in this fanfiction could be that Naruto's positive and determined nature clashes with Doctor Doom's tyrannical and power - hungry ways. Maybe Naruto is transported to Doctor Doom's world and tries to bring his sense of justice there. He might use his ninja skills to outwit Doom's high - tech defenses.