A Crossover Fanfiction of Ben 10 and Fairy Tail: What Could It Be Like?

A cool plot might be that a powerful dark wizard in the Fairy Tail world discovers a way to control some of Ben's aliens. Ben has to seek help from Fairy Tail mages to break the control and then they join forces. The Fairy Tail members are amazed by Ben's ability to transform and his alien powers, and they work together to stop the dark wizard's plan to take over both worlds.

One possible plot could be that Ben Tennyson, while on a trip with his family, somehow gets transported to the world of Fairy Tail. His Omnitrix malfunctions due to the different magical energies in that world. The Fairy Tail guild members are initially suspicious of him but when they see his alien forms in action against some common enemies like the Dark Guilds, they start to work together. Ben could learn about magic from the guild members and they could learn about his advanced technology.

One possible plot could be that an interdimensional portal opens up and Ben 10 accidentally ends up in the Fairy Tail world. He then has to find a way back home while getting involved in the guild's problems. Maybe a powerful dark mage is after the Omnitrix, thinking it can give him ultimate power.

Well, it could be really exciting. Imagine Naruto's powerful Rinnegan abilities being introduced into the world of Fairy Tail. Characters from Fairy Tail might be in awe of Naruto's skills and his ability to manipulate gravity, space - time, etc. Maybe Naruto could team up with Natsu and they could go on some epic adventures together, fighting against the dark guilds in Fairy Tail with Naruto's Rinnegan - enhanced powers.

A good crossover idea is to have a character from Ben 10, like Gwen, use her magic to help the Fairy Tail guild in a difficult situation. Maybe there's a dark magic that only Gwen can counter because of her unique powers. Or, have the Plumbers from Ben 10's world come to the Fairy Tail world to investigate some strange energy readings that turn out to be related to a powerful magic item in Fairy Tail.

Well, it could be a wild adventure. Imagine the Doom Slayer in the Fairy Tail world. He might be seen as a super powerful mage with his insane combat skills. He could team up with Natsu and the gang to take on some really tough enemies. Maybe they face a demon invasion in the Fairy Tail world, and the Doom Slayer's advanced weaponry and his unwavering determination would be a huge asset to the Fairy Tail guild.

One possible plotline is that Ben Tennyson accidentally gets transported to the world of Fairy Tail. He has to figure out how to use his Omnitrix in a world full of magic. Another could be that the Fairy Tail guild discovers an alien device similar to the Omnitrix and they try to figure out how it works.

The combination of different powers. Ben's alien powers and Fairy Tail's magic make for some exciting battles.

Well, it could be really exciting. Ben 10 has all those cool alien forms he can transform into. Imagine him facing off against a Xenomorph. His Heatblast form might be able to use its firepower to keep the Xenomorph at bay. And his Four Arms form could have a physical fight with it. It would be a battle of different kinds of alien powers.

It could be really exciting. Imagine the powerful mages from Fairy Tail meeting the demon - slaying Inuyasha. They might team up to fight a common enemy, like a powerful dark mage who has made a pact with some of the demons from Inuyasha's world. The magic of Fairy Tail and the spiritual powers and swords in Inuyasha could create some really cool battle scenes.