Iron Man's quick - witted and sarcastic nature might initially annoy Black Panther. However, when it comes to problem - solving, they could work well together. Black Panther's calm and calculated approach can balance out Iron Man's sometimes impulsive decisions. For example, in a battle situation, Iron Man might want to rush in with his high - tech firepower, but Black Panther could hold him back and suggest a more strategic plan that takes into account the long - term consequences for Wakanda and the world.
In a fanfiction, their personalities could develop over time. Maybe at first, they have a hard time getting along. But as they face challenges together, like a global threat that requires both Wakandan and Stark technology to defeat, they start to understand each other better. Iron Man could learn about the importance of tradition from Black Panther, and Black Panther could come to appreciate Iron Man's ability to think outside the box and innovate without being bound by centuries - old rules.