Well, perhaps in this fanfiction, the warrior element means Harry is part of a secret order of wizard - warriors. They have their own code and fight not just with wands but also with physical combat skills and enchanted weapons. This could lead to some really exciting battles and new alliances within the wizarding world.
One idea could be the warrior aspect making Harry a more battle - hardened and strategic fighter. Maybe he trains in a secret ancient magic that combines the wizarding and warrior skills, allowing him to face Voldemort's forces in a completely new way.
One idea could be the Holy Warrior having unique magical abilities that are different from the regular magic in the Harry Potter world. For example, they might be able to purify dark magic on a large scale.
A plot could involve Harry being trained in an ancient art that combines mage and warrior techniques. He then has to use these skills to protect Hogwarts from a new threat that is immune to normal magic. He might have to physically fight and use magic at the same time, like creating magical shields while engaging in hand - to - hand combat.
A possible plot could be that Voldemort also finds his way into the Spartan world. Harry then has to form an alliance with the Spartans to fight against Voldemort. The Spartans, with their combat skills, and Harry, with his magic, combine forces. Harry might teach some of the Spartans basic defensive spells to protect their city - state from Voldemort's dark magic attacks.
A story where the Warrior Princess is actually a long - lost heir to a powerful magical family in the Harry Potter universe. She discovers her heritage while at Hogwarts and has to balance her newfound magical powers with her existing warrior skills. She could form an unlikely alliance with some of the main characters to fight against a dark force that is interested in her unique combination of powers.
One idea could be to have a wizard from the Harry Potter world time - travel back to the era of ancient warriors. They could use their magic to aid or disrupt the battles of the ancient warriors, creating a whole new dynamic in the historical events. For example, a wizard could help an outnumbered group of ancient warriors by using magic to create illusions to confuse their enemies.
One idea could be a story about a young cat who is born with a unique power in the warrior cats world, like the ability to communicate with other animals. This cat could struggle to fit in with the traditional ways of the clans but eventually use their power to save the clans from a great danger. For example, they might be able to understand the warning signs from the birds about an approaching flood or a group of hostile foxes. Another plot could be a forbidden love story between two cats from rival clans. They would have to keep their relationship a secret while also trying to find a way to bring peace between their clans.
One interesting story could be about a wizard who is also a skilled warrior and has to protect Hogwarts from a new dark threat. He uses both magic and combat skills.
A great plot for a Potter Manor fanfiction could involve a mystery that surrounds the manor. For instance, strange noises at night lead Harry to uncover a long - forgotten chamber. It could also be about Harry restoring the manor to its former glory, perhaps with the help of Hermione's research on ancient magic used in the construction of such manors.
One idea could be that a Harry Potter character, like Harry himself, discovers an ancient Aztec magic during his travels. Maybe he stumbles upon an Aztec temple hidden in the Forbidden Forest. This new magic could have unique powers that he has to learn to control and incorporate into his existing magical abilities.
A traveler could be from a different magical realm entirely and come to the Harry Potter universe. They bring with them unique magical abilities that both fascinate and frighten the wizards in the Harry Potter world. This could lead to a series of adventures where they either share their knowledge or are hunted down by those who fear the new magic they possess.