One implication could be in the area of healing. If Percy can control blood, he could potentially direct it to areas of the body that need repair. For example, if someone has a cut, he could make the blood clot faster by controlling its flow and the platelets within it. This would make him a very valuable asset in any medical emergency within the world of the fanfiction.
In terms of combat, it would give Percy a huge advantage. He could make an enemy's blood boil literally, causing them great pain and weakening them. Or he could slow down their blood flow, making them sluggish and easier to defeat. This new power would change the power dynamics in battles he is involved in and make him a more formidable opponent.
Socially, it might make other characters view Percy differently. Some might fear him because of this rather unusual and powerful ability. Others might see him as a potential savior, especially if there are diseases or plagues in the fanfiction world that could be related to the blood. His ability to control blood could be seen as a way to combat these threats, but at the same time, it could also isolate him if others are scared of what he can do.
One implication could be in combat. He could potentially use the blood of his enemies against them. For example, if an opponent is bleeding, he could make the blood blind them or make their movements sluggish by interfering with the normal blood flow.
One implication is a change in his abilities. Elves are often associated with things like archery and nature magic, so Percy might gain these skills. His physical appearance would also change, probably getting pointed ears.
One implication could be that his relationships with other characters change. For example, his friends might be initially scared or cautious around him. His lycan abilities would also mean he has new powers to use in fights.
One consequence could be that Percy gains a lot more respect among the demigod community. Controlling Typhon is no small feat, so he'd be seen as an even greater hero. Others might look up to him more and he could potentially become a leader in a more significant way.
Well, it could mean a huge power boost for Percy. Hyperion is a powerful Titan, so Percy might gain abilities like enhanced strength, maybe some new control over light or the sun. It could also change his status among the demigods, making him even more of a force to be reckoned with.
Well, in some fanfictions, it might be related to his demigod powers. Since he has a connection to the water element, blood being a liquid could potentially be manipulated in a way similar to how he controls water. Maybe he can sense the water content in blood and use his will to move or influence it.
Well, it would completely change the dynamic of the 'Percy Jackson' universe. Artemis is a powerful and independent goddess, and this would shatter her image as a virgin goddess. For Percy, it would put him in a very strange and controversial position. Also, it would likely cause a huge upheaval in the relationships between the gods and demigods.
One scenario could be Percy using his ice - controlling powers to save his friends from a giant ice monster. He freezes the monster's legs, immobilizing it long enough for them to escape.
One implication is the moral dilemma. Percy would have to decide when and how to use such a powerful and invasive ability.
When Naruto controls minds in fanfiction, it can have a significant impact on the Naruto universe. It can rewrite the moral code of the story. Is it right for him to control someone's mind? This ethical dilemma can create complex storylines. It can also make Naruto a more complex character, as he has to deal with the consequences of using such a powerful ability.