Who could be the main antagonist in 'godlike naruto avatar fanfiction'?

It could be a rogue ninja who has somehow harnessed the power of the Crimson Avatar in a dark and corrupted way. This ninja could use his powers to try and take over the ninja villages, believing that the traditional ninja ways are weak. He might see himself as a new kind of leader, using fear and his overwhelming Crimson Avatar powers to rule.

In the 'immortal naruto avatar fanfiction', the main antagonist might be a corrupted Avatar. This Avatar, instead of maintaining balance, wants to use Naruto's immortality to become an all - powerful dictator. He or she would have the bending abilities of an Avatar and the knowledge of how to use them in devious ways. This would put Naruto in a difficult position as he has to either stop the Avatar or find a way to redeem him/her while also protecting his own immortality.

There's also the possibility that a group of rogue ninjas, who have banded together after being ostracized for their interest in the godlike hollow powers, become the antagonists. They might believe that Naruto is misusing or hoarding these powers and decide to take them by force, leading to a series of intense battles between them and Naruto.

Perhaps a dark entity from another dimension. This entity senses Naruto's powerful bloodline and wants to possess him or use his body as a vessel to enter the Naruto's world and wreak havoc. It would have otherworldly powers that Naruto has never faced before, making it a truly formidable antagonist.

It could be a combination of Orochimaru and Lex Luthor. Orochimaru from the Naruto universe is always seeking power and Lex Luthor from the DC universe is a brilliant but evil mastermind. They could team up, with Orochimaru being interested in Superman - like Naruto's unique physiology and Lex Luthor wanting to use Naruto's power to take over both the Naruto world and the DC world. They would be a formidable duo, constantly devising plans to undermine Naruto and his friends.

It could be Orochimaru. Imagine if he also found a way to cross over into the Avatar world. With his knowledge of dark jutsu and his desire for power, he would be a formidable antagonist. He might try to use the bending abilities for his own evil purposes and also target Naruto because of his immortality, seeing it as something he could steal or use to further his plans.

It could be a powerful ninja from an ancient clan who sees the character with the godlike multi - bloodline as a threat to their own clan's supremacy. This antagonist would be very skilled in traditional ninja arts and would use their knowledge of the old ways to try and defeat the protagonist.

It could be Orochimaru from the Naruto universe who somehow manages to infiltrate the Metal Gear world. With his knowledge of dark jutsus and his devious nature, he would make a great antagonist. He could start experimenting on the soldiers in the Metal Gear world, creating some sort of mutant - ninja - soldier hybrids.

It could be a powerful dragon who has been corrupted by dark magic. This dragon might see Naruto's newfound powers as a threat and decides to target him and the Hidden Leaf Village first.

Maybe an ancient being that was sealed away long ago in the RWBY world but has now been awakened by Naruto's arrival. This being, with its own set of dark powers, sees Naruto as a threat to its plans of domination. It starts to create chaos, summoning Grimm in large numbers and using some form of corrupted chakra - like energy to attack. The RWBY characters and Naruto would have to put aside their differences and combine their skills to defeat this powerful foe.