Who would be the most interesting character to summon from Harry Potter into One Piece in a fanfiction?

Nami and Ginny would be an interesting match. Nami's love for money and Ginny's fiery spirit could lead to some great interactions. Nami could teach Ginny about navigating the high seas and making smart financial decisions, while Ginny could show Nami some of the magic tricks that witches use. Also, Hagrid and Chopper would be adorable together. Hagrid's big heart and love for strange creatures would mesh well with Chopper's kind and curious nature. They could exchange stories about magical and unique animals in their worlds.

Harry Potter and Luffy would be an amazing pairing. Harry's serious and sometimes brooding nature combined with Luffy's carefree and positive attitude would create a great dynamic. Luffy could also teach Harry about having more faith in his friends and believing in himself without relying so much on magic all the time.

Dumbledore might be the most powerful. He has vast magical knowledge and experience. In a crossover, he could quickly understand the mechanics of Devil Fruits and use his magic to counteract any threats from One Piece characters. He could also use his intelligence to outwit the pirates and use spells like the Patronus to protect himself and others from danger.

Definitely Batman and Luffy. Luffy's carefree and positive attitude would contrast with Batman's brooding nature. But they both have a strong sense of justice. Luffy punches bad guys, and Batman uses his gadgets and martial arts. They could learn a lot from each other. Another interesting pair could be Robin and Alfred. Alfred's wisdom and knowledge could help Robin understand more about the history and culture in Batman's world, while Robin could share her knowledge of the Poneglyphs with Alfred.

I think Nami could be fascinating. In a DxD setting, she could use her wits and charm to manipulate some of the Devils and Angels, just like she does with pirates in One Piece. Also, her knowledge of navigation and treasure hunting could give her a unique role in the DxD universe, perhaps leading her to discover some hidden treasures related to the different factions.

Dumbledore would be an amazing crossover. His wisdom and power are so great. In Storybrooke, he could act as a sort of guiding figure for the characters. He could help them understand the deeper magic at work in their town, and maybe even teach some of them about the more noble aspects of magic, which could be different from what they already know in their fairy - tale world.

Severus Snape could also be a great crossover. His sardonic nature and his skills in potions could translate well in Bioshock. He might be interested in the way ADAM is created and used. He could also use his Occlumency skills to hide from the more dangerous inhabitants of Rapture. His complex character would add a lot of depth to the story, as he could be a reluctant ally to Harry in this strange new world or have his own hidden motives for being there.

Harry Potter and Ainz Ooal Gown. Harry is the hero of his world, constantly fighting against dark forces. Ainz is a powerful overlord in his own right. If they were to cross paths, Harry might see Ainz as a potential new threat, while Ainz might be interested in Harry's unique magic and the prophecy that surrounds him. Their meeting could lead to a series of misunderstandings and battles, or they could end up forming an unlikely alliance against a common enemy.

Hermione. She's intelligent and resourceful. In the Tangled world, she could use her knowledge of spells and potions to solve problems. For example, she could brew a potion to make Rapunzel's hair grow even longer and stronger if it was damaged in some way.

Harry Potter himself would be very interesting. Combining his wizarding skills with Kryptonian powers would make him an extremely powerful character. He could be the bridge between the two worlds and use his new powers to protect both the wizarding world and the world of Kryptonians on Earth.