JUMP SUPER/ULTIMATE STARS CHALLENGE:
Here I am with a crossover idea.
It's basically a Jump Super/Ultimate Stars fic with the plot of The Super Hero Squad Show. Here are the tips:
1. It's not strictly necessary a sword, just any weapon or object with infinite power broken into pieces.
2. All Shonen Jump worlds are together in a big city and the villains are apart (like Super Hero City and Villainville. You can create the name of both)
3. Take note about the team's factors (Animal, Energy, Strength, etc)
4. It has to be action/adventure with slight comedy
I'll leave you to create the rest of the story as you want. I'll also try to make one.
See ya later, Bye.