Maybe he finds it in a hidden chamber at Hogwarts. There could be some ancient magic protecting it, but Harry, with his knack for getting into trouble and finding things, stumbles upon it.
Well, in many such fanfictions, Merlin might use his magic skills. He could draw on ancient spells and his deep knowledge of magic. Maybe he starts by gathering special materials like a rare wood from an enchanted forest. Then, with precise incantations and his powerful magic, he shapes the wood into the form of a staff, imbuing it with magical properties.
The staff could be a symbol of Harry's newfound power. With Merlin's crafting, it might represent an ancient magic that Harry can now access. It could also be a connection to Merlin's own magic, giving Harry an edge in battles or magical tasks.
The fanfic could start with the daughter of Merlin's staff being raised in a muggle family, unaware of her true identity. When she receives her Hogwarts letter, strange things start to happen. As she delves into the wizarding world, she begins to have visions related to Merlin's staff. She has to learn to control her powers, which are tied to the ancient magic of the staff. With the help of some wise professors and her newfound friends, she gradually uncovers the truth about her lineage and the great responsibility that comes with it.
Merlin's staff can play a very important role. For example, it could be a key to unlocking ancient magic that has been long forgotten in the Harry Potter universe. Harry might use it to access powerful spells that can help him in his battles against Voldemort or other dark wizards.
One interesting fanfiction could be where Harry Potter discovers Merlin's staff and it unlocks a new set of magical abilities within him. This could lead to him facing new challenges and enemies in the wizarding world.
The staff could make him more confident. If it has powerful magic, he would feel more capable of taking on difficult tasks. So, his character might shift from being a bit hesitant to more assertive.
It could be Dumbledore. Dumbledore is always full of surprises and he might give Harry the staff as a last - resort weapon to fight against Voldemort. He could have been secretly researching the staff and its powers and decided that Harry was the only one who could wield it properly.
In the fanfic, it's possible that with Merlin's staff, Harry can perform time - traveling magic in a more controlled way. He could go back to key moments in wizarding history to learn from the great wizards of the past and bring that knowledge back to his present time to defeat the dark forces.
She might find the long - lost Merlin's staff and unlock powers that no one has seen in centuries. This could change the balance of power in the wizarding world, attracting both allies and enemies.