In fanfiction, Percy might start by summoning a large amount of water, like a small lake, around the Wendigo. This would limit its movement. Then he'd use his connection to the sea to sense the Wendigo's movements within the water. When the Wendigo tries to attack, Percy would dodge and use Riptide to counter. He could also use the water to form a sort of armor around himself for protection against the Wendigo's attacks, gradually wearing the Wendigo down until he can deliver a final blow.
Percy could first create a whirlpool around the Wendigo, disorienting it. Then, when it's off - balance, he'd lunge forward with his sword. His ability to control water temperature could also be used to send blasts of scalding hot water at the Wendigo, weakening it.
In a fanfic, Percy Jackson could defeat Thanos with his water powers. He might use the water around to create huge tidal waves and drown Thanos. Also, his speed and combat skills, which he has honed through many battles in his own world, could give him an edge. He could quickly dodge Thanos' attacks and strike back with his sword Riptide.
He could use his sense of humor. Just like in the Harry Potter world, laughter can be a powerful weapon against a boggart. Percy has a witty side, so he could crack jokes to make the boggart change into something less scary and then attack it.
In a fanfiction scenario where Percy Jackson fights the Wendigo, Percy's speed and agility as a son of Poseidon would be crucial. The Wendigo is known for its ferocity and cold - based powers. Percy might have to find a way to counter the Wendigo's freezing attacks. He could use his control over water to create a shield of steam, which would both protect him from the cold and obscure the Wendigo's vision, giving him an opportunity to strike with Riptide.
Percy has his speed and agility. In the fanfiction, he might be able to use his demigod reflexes to dodge all of the Avengers' attacks. He could then quickly move in for a counter - attack. Also, his sword, Riptide, is a powerful weapon. It can cut through almost anything. He could use it to cut through the Avengers' weapons or their defenses if he gets close enough.
Another possibility is that Percy discovers some long - forgotten weakness of Zeus. In the world of fanfiction, the author could create a scenario where Percy stumbles upon an ancient prophecy or a hidden secret about Zeus. This knowledge could give Percy the upper hand. He could then use his wits and his powers to exploit this weakness and defeat Zeus.
Percy Jackson is really good at improvising in battles. He might use the environment to his advantage. If they are in a place with water sources, like near a river or a lake, Percy can summon huge waves to knock Galbatorix off his feet. And considering Percy has faced powerful foes before, he won't be intimidated easily. He could also use his speed and agility, which he has developed from his years of fighting monsters, to dodge Galbatorix's attacks and get in close for a killing blow.
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, in some fanfictions, Percy might control ice through a new power bestowed upon him by some mysterious god or entity. Maybe he discovers he has the ability during a quest when he's in a really cold and magical place.
Well, in some fanfictions, Percy might use his water - controlling abilities. Since poison can be in liquid form, he could manipulate the water within the poison, perhaps separating out the harmful components. Another way could be through his demigod powers, which might give him an innate resistance or control over harmful substances like poison.
Some fanfictions might suggest that Percy's control over blood is a new power he discovers while on a special quest. He might find out that his powers are not just limited to water bodies but can also extend to the fluids within living beings. He could start to experiment with this new - found ability, and at first, it might be a bit clumsy. But as he gets more practice, he could use it for various things, like healing (by manipulating the blood's flow to injured areas) or even in combat (by making an opponent's blood act in a way that disables them, like making it rush to their head and cause dizziness).