It could also be that instead of fighting right away, there's a tense stand - off. Luffy, remembering Ace's past encounters with Blackbeard, would be full of anger and distrust. Blackbeard, on the other hand, might try to taunt Luffy, trying to get him to make a rash move. The situation could escalate slowly as they exchange words, with their crews on edge, waiting for the first sign of action.
Blackbeard's crew is also a diverse bunch. His more aggressive members like Burgess might be eager to start a fight with Luffy's crew. However, some of the more cunning members could be thinking of ways to use the situation to their advantage. They might try to manipulate Luffy or his crew into making mistakes. And if Blackbeard decides on a certain course of action, his crew would generally follow, but there could be some internal dissent depending on the situation.
In this fanfiction, Luffy might be used as a bargaining chip by his captors. Maybe they'll try to exchange him for something valuable, like a powerful Devil Fruit or a large amount of treasure. His crew would then surely launch a rescue mission, facing many challenges along the way.
Well, in such a fanfiction, Ace might be worried about Luffy. Since Blackbeard is a dangerous character. He could decide to go and find Luffy to protect him. Maybe he'd start looking for Blackbeard too, to make sure he doesn't harm his little brother.
The story of Blackbeard's wife is somewhat of a mystery. Given that Blackbeard was a feared pirate, it's possible that any relationship he had was kept secret. There are no well - documented accounts of a wife in the historical records that are commonly known. Maybe his lifestyle of plundering and living on the high seas was not conducive to a stable marriage.
One key element is his fearsome appearance. His long, black beard with the lit fuses was very intimidating. Another is his ship, the Queen Anne's Revenge. It was a powerful vessel. Also, his acts of piracy like plundering ships are important. His brutality and the fear he instilled in his enemies are also key elements.
One main element is Blackbeard himself. His fearsome reputation as a pirate is central. Another is the idea of his ghost haunting places. For example, his old haunts like certain islands or ports.