In a great Percy sword fight fanfic, the setting is really important. If it's in a mythical place like Olympus or the Underworld, it adds an extra layer of excitement. The opponents Percy faces also matter. They should be challenging and have their own unique fighting styles. For example, if he's fighting a monster, it should be something new and terrifying. And of course, the way Percy uses his sword, whether it's his trusty Riptide or some other magical weapon, needs to be well - described. The fanfic should also show Percy's growth as a fighter, maybe he learns a new move or overcomes a weakness during the fight.
One key element is the pacing. The sword fight scenes should have a good rhythm, not too slow that it becomes boring, but not so fast that you can't follow what's happening. The emotions are also crucial. Percy might be feeling determined, angry, or scared during the fight, and these feelings should be conveyed to the reader. Additionally, the use of other powers or abilities in conjunction with the sword fighting can make the story more interesting. For instance, if Percy can also control water while fighting with his sword, how does he combine these two skills? And finally, the dialogue during the fight can add depth. It could be Percy taunting his opponent or giving a battle cry that shows his spirit.
Well, first, a good description of the sword fighting itself. It should make you feel like you're right there in the middle of the action. Second, accurate portrayal of Percy's character. His courage, quick thinking, and loyalty should shine through in the fight. Third, an interesting plot that gives a reason for the sword fight. It could be a battle for survival, a competition, or to protect someone.