Ok , this is not a crossover , but an alternate tale where asta from black clover is the main protagonist of one piece , so what I'm picturing is swapping out luffy for asta and have him be the captain of the strawhats , now I don't have anything against luffy , but I have come to really enjoy asta as a protagonist , and I visualize time in luffy place as the crew captain and the main character and I feel that it could be a good story.

Now for plot ideas , since asta is a swordsman he would have to have a different devil fruit and my mind went crazy , there are 3 devil fruit ideas , when it comes to asta , the first is the goro goro no mi that belonged to eneru , pretty op fruit so maybe asta doesn't get off until a later part in the story, like right before they enter the new world . The second fruit option is the pika pika no mi , kizaru's fruit , that fruit power is strong but it also has symbolism, for one thing it's the opposite of asta original dark themed powers and its the opposite of blackboard devil fruit , who is the final villain of one piece , so there is more symbolism . The final option is blackboard fruit the yami yami no mi , that power is the closest resemblance to asta original power from black clover , theme of negating other powers and darkness. Now if you were to go with blackboard fruit then that would change the final villain , but I have an idea for that , the alternate final opponent for asta could have the pika pika no mi , so more symbolism also it's been said that kizaru is to lazy to use the fruit full potential, so imagine a character whom is a master swordsman , has haki and the pika pika no mi , definitely a Yonko level character .

Now just because asta has the same goal as luffy does not make them the same character , asta would want to be the pirate king for different reasons , and he didn't have a problem with being a hero. His chemistry with the characters would be different , asta is not as hard headed as luffy and he is not as gluttonous , he also has similarities to zoro , you can have him spar and train with zoro on the ship . Asta could have interesting dialogue with the enemies , luffy just has that mentality to kick a bad guy ass. You can have asta find out exactly what happened to nami village and really tear arlong apart both verbally and mentally , that's just one example . One last thing is the romance section now I am a fan of harem stories and I would love for this asta in one piece story , to have asta have a harem of one piece girls . It's 6 girls total being nami , robin , vivi , Hancock, Margaret and shirahoshi . Asta is kind of a harem protagonist in his original series so it's not hard to put him with these girls .

One last thing is the post time skip part of the story, I would love to help with a rewritten part of the new world arcs , I have this whole alternative sky island arc idea with shiki as the main character that I would love to bring to life . So hopefully somebody is interested in this idea, I'm not a writer just a guy with ideas, also if you are one piece fan but hate black clover please keep your negative comments to yourself, no flames or hate please.