The Heir of Merlin in HP universe

Notice: This is under hiatus for indefinite amount of time, check out my other fanfic: Legend of Arcane emperor Typical reincarnation through non-typical accident throw our MC into the world of Harry Potter. Accompany him as he gets a support system, overturns the wizarding world, and creates miracles! Your suggestions to add plots are appreciated. Just write in the comments if you want anything: war, duel, or romance scenes. No harem! (With MC at least).