What are some possible plotlines in Naruto Servant, Phoenix and Saint fanfiction?

In a fanfiction, a possible plotline is that Naruto is chosen to be a Servant for a special mission. His Phoenix powers start to manifest when he is in danger, like growing wings of fire to escape. As a Saint, he is tasked with purifying an ancient evil. He travels to different lands to gather artifacts that can enhance his powers. During his journey, he meets other characters who either help or hinder him, and he has to use his wits, along with his Servant, Phoenix, and Saint powers to complete his mission and bring peace to the world.

One plotline might involve Naruto's village being attacked by a dark force that can only be defeated by the combined powers of a Servant, Phoenix, and Saint. Naruto, with his newfound status, has to figure out how to harness these powers effectively. He might start by training with an old sage who knows about the Phoenix and Saint lore. Along the way, he discovers secrets about his family that are related to these powers, and he uses this knowledge to defeat the dark force and save his village.