The Arrival of an Ninja

What would you do, if god killed you and asked you to save one of his worlds?
(Y/n): HELL NO!
God: WELL I WASN'T ASKING! Here, take this Sharingan and Darkness Magic!
(Y/n): WHA-
God: Off you go! YEET!

Time to see what would happen, when a Ninja joins the roster of Magicans.