In this scenario, it would be a complete shocker. Tony Stark is a hero, and Thanos is a villain. If he were to join Thanos, it might be because Thanos somehow convinced him that his plan was for the greater good. Maybe Thanos showed him a future where overpopulation and resource depletion were so bad that his 'snap' was the only solution. But this would go against everything Stark stands for, so it would be a very complex and dark turn for his character.
In fanfiction, their interactions can also be very tense. Tony might try to use his sarcasm and intelligence to taunt Thanos, while Thanos, with his calm and collected demeanor, would simply brush it off. Sometimes, Thanos might even admire Tony's tenacity in the face of such overwhelming power, which could lead to some interesting exchanges between them.
Comic storylines are fluid. Thanos and Tony Stark's interactions vary. So, there's no standard way Thanos kills Stark. It could involve cosmic powers, strategic battles, or unexpected plot twists.
One interesting Thanos and Tony Stark fanfiction could be where they have to team up against an even greater threat in the universe. Maybe a new powerful alien race emerges that is set on destroying all life, and Thanos, with his knowledge of different planets and Tony Stark with his technological genius, are forced to put aside their differences. In this kind of story, we might see Tony trying to outwit Thanos at times while also learning from his vast experience in the cosmos.
In some fanfictions, Thanos and Tony Stark have a more personal connection. For example, Thanos has a past encounter with Howard Stark (Tony's father) that changes the whole dynamic. This could lead to a story where Thanos has a different view of Tony, and Tony has to grapple with this new information while trying to save the universe.
Tony Stark could use his intelligence to analyze the BAMF's weaknesses. He might quickly run scans during their encounters to figure out what can harm the BAMF. Then, he could upgrade his Iron Man suit with new weapons and defenses specifically designed to counter the BAMF's attacks.
In some fanfictions, the relationship between Tony Stark and Thanos is explored through their interactions with other characters. For example, if Pepper Potts gets involved in some way, it could change how Tony approaches Thanos. Or if Thanos' daughters play a role, it might soften Thanos' stance towards Tony, leading to a more nuanced exploration of their relationship.
Tony Stark himself is often very well - written in these fanfictions. Writers can really explore his genius, his determination, and his flaws. Another great character can be Pepper Potts. In some fanfictions, she plays a crucial role in helping Tony, like providing him with moral support or even getting involved in the fight in some way. And of course, Thanos. A well - written Thanos in these fanfictions is truly menacing, with his complex motives and powerful abilities clearly shown.
Well, in some 'Tony Stark Fights Thanos' fanfiction, there's a plot where Tony manages to hack into Thanos' mind through some super - advanced tech he's developed. This allows him to create illusions in Thanos' head, confusing him during battle. Also, a common plot is that Tony sacrifices himself in a very heroic way. He uses all his suit's power and some experimental tech to send Thanos into a different dimension or something like that, saving the universe at the cost of his own life.
One interesting scenario could be Tony Stark using his superior intellect to outwit Thanos in a battle of wits rather than just brute force. He might create a device that can nullify the power of the Infinity Stones for a short time.