Writers can create tension by making the body - switched Avengers face time - sensitive missions. For example, if Iron Man and Thor switch bodies and there's an immediate threat from an alien invasion. Thor in Iron Man's body has to quickly figure out how to operate the suit to fight, and Iron Man in Thor's body has to use Thor's powers effectively against the invaders. The ticking clock of the invasion adds tension.
One way is to introduce internal conflicts within the switched characters. Say, if Captain America and Hulk switch. Captain America in Hulk's body might be horrified by the Hulk's uncontrollable rage and has to constantly fight against it during a battle. Meanwhile, Hulk in Captain America's body might feel restricted by Steve's more disciplined mindset. This internal struggle between their normal selves and the new bodies they're in can build up tension.
By creating misunderstandings among the other Avengers. If Black Widow and Hawkeye switch bodies, the other Avengers might misinterpret their actions. For instance, Natasha in Clint's body might make a decision that the team thinks is out of character for Clint. This lack of trust and the resulting need to prove themselves again while in the wrong body can create a great deal of tension in the story.
They can create tension by making the possession a secret that could be discovered at any moment.
Another way is to have the character's upset tummy be a result of something they did wrong, like stealing food and now they are suffering the consequences. This creates an internal conflict within the character as they deal with both the physical pain and their guilt, which adds to the overall tension of the fanfiction.
Writers create tension by making Clint's injury really severe. For example, if he's poisoned, the readers will be on edge wondering if he'll survive. Also, showing the Avengers' desperation to save him adds to the tension.
One way is to focus on the characters' reactions. For example, if Iron Man and Captain America swap bodies, Iron Man in Cap's body might struggle with the more old - fashioned values. Writers can also use the body swap to explore different powers. Say Hulk and Black Widow swap. The humor in a small - framed Widow trying to control the Hulk's strength can be a great plot point. And don't forget the relationships. How would Thor react if he swapped with Loki? Would it lead to a better understanding between them? It could add a whole new layer to their complex relationship.
By using descriptive language about the attack. If the writer vividly describes the attacker's menacing appearance, like 'The dark - cloaked figure loomed over Hermione, its eyes glowing red as it raised its wand menacingly', it makes the situation seem more dire. Also, showing Hermione's fear and vulnerability, such as her hands shaking as she tries to reach for her wand, adds to the tension.
By showing the severity of the injury. If a Charizard has a badly broken wing, it immediately creates tension as the reader wonders if it will ever fly again. The uncertainty of the Pokémon's future makes the story gripping.
Using a slow build - up to the moment of hurt can be effective. The writer can show Sam gradually being pushed to his limit, and Bella being unaware of the impending danger. Then, when the hurt occurs, it's like a bomb going off. And by leaving the resolution uncertain for a while, keeping the reader on edge about whether Sam and Bella will be able to fix their relationship or not.
One way is through the reactions of the other characters. If the village leaders start to question whether Naruto can still be a useful ninja, it creates tension. And if his friends are divided on how to help him, that also adds to it. Another method is by introducing new threats that specifically target Naruto because of his weakened state due to his breathing problem. Maybe there's a group that wants to take advantage of his vulnerability.
Writers can create tension by having the fungal infection spread quickly. If it starts infecting more and more characters at a rapid pace, the remaining characters will feel pressured to find a solution fast. For example, if a whole village gets infected overnight, the RWBY team will be in a race against time.
Another way is through the description of Taehyung's own state. If he's in pain but trying to be strong, or if he's confused and hurt by the situation, it makes the readers feel for him. The writers might also introduce some obstacles in his recovery process, like a lack of proper medical facilities or some internal conflicts within the group that delay his getting better. This all serves to create and maintain tension throughout the fanfiction.