Harry would likely be more fearless. In Fairy Tail, the guild members often face powerful enemies without hesitation. Growing up in such a guild, Harry would be influenced by their courage. He would not be as hesitant or self - doubting as he sometimes was in the Harry Potter series. Instead, he'd be more likely to take risks and jump into dangerous situations, believing in his own abilities and the support of his guildmates. Also, he'd have a greater sense of loyalty to his 'family' in Fairy Tail, which could be even stronger than his loyalty to his friends at Hogwarts in the original story. This loyalty would drive him to protect his guild at all costs.
It would probably be really interesting. Harry Potter's world of magic is quite different from Fairy Tail's. In this fanfic, Harry might grow up with the rowdy and family - like atmosphere of Fairy Tail guild. He could learn magic in a more free - spirited way compared to Hogwarts. Maybe he'd be more outgoing and less reserved as he'd be surrounded by the exuberant Fairy Tail wizards.
The Fem Harry Potter raised by Sirius Black would have a complex personality. On one hand, she'd have Sirius' loyalty and sense of justice. She'd be ready to fight for what's right. On the other hand, she'd be a bit wilder. Sirius' experiences outside of the normal wizarding society would make her question things more. She might not trust authority figures as easily as the original Harry, and be more willing to break the rules if she thought they were unjust. Her personality would be a blend of Sirius' rebelliousness and the underlying goodness that Harry Potter is known for.
His magic could be different in terms of its source. In Harry Potter, magic seems to be more inborn and related to one's heritage and the magic within themselves. In Fairy Tail, magic can be learned and developed in different ways, like through training and guild support. So Harry, raised by Fairy Tail, might have a broader understanding of where his magic comes from. He might see it as something that can be continuously improved and not just as a natural gift. This could lead to him constantly seeking new ways to enhance his magic, perhaps by using Fairy Tail's training methods on traditional Hogwarts spells, which could result in some really unique magical effects.
He'd likely be more withdrawn and edgy. Constant exposure to the creepy elements would make him less trusting and more on - guard all the time.
He'd probably be more refined. The Delacours are known for their elegance, so Harry might have better manners and a more sophisticated way of speaking.
His personality would likely become more complex. He could be more withdrawn in some ways, as he might not fully trust others easily. Since Lucifer is associated with power and manipulation, Harry might also show tendencies to manipulate situations to his advantage. He would have a different view of loyalty, perhaps seeing it more as a tool for his own ends rather than an inherent virtue.
He might be more feral. Growing up with a monster, he could lack some of the social graces that a normal upbringing in the wizarding world would provide. He may be more direct and less concerned with propriety.
He might be more laid - back. Canadian culture is often seen as more relaxed, so Harry could have a calmer demeanor. He wouldn't be as quick to get into arguments or be as impulsive as he sometimes was in the original story.
Well, since Moody is a very vigilant and somewhat paranoid character, Harry would be more observant. He would constantly be on the lookout for danger, like Moody does. His sense of humor might also be a bit darker, influenced by Moody's experiences in the wizarding wars. He might not be as quick to make friends, as he would be more focused on who could be a potential threat. Also, his view of authority might be different. Instead of always looking up to Dumbledore, he might question authority more often, as Moody is a bit of a maverick in his own right.
He would probably use magic for more practical and lethal purposes. For example, the Imperio curse could be used to control his targets, making it easier for him to complete his assassinations. The Disillusionment Charm would be crucial for him to blend into the shadows and get close to his victims unnoticed. And he might also use the Stunning Spell not just to incapacitate, but perhaps as a precursor to a more deadly attack.