Some Ideas pls pls add it:
(1)Y/N flames are like a fusion of Fiendfyre(its destruction) and Protego diaoblica(it control). It can destroy hocruxes and kill voldemort even if he has a hundred hocruxes. This flame will cut Voldemort's connection(causing the soul of voldemort in it to become pure energy that will merge into voldemorts soul in afterlife) ot the Hocruxes and send him to afterlife, with his hocruxes only having his energy signature and some memories, and in worse case a duplicate memory like the diary hocrux. His fire is upgraded by being fused with lightning making it faster, more controlled and can decide the speed at which it swallows the target. It leaves no ashes and instead of just burning, it also absorbs the target. Not even leaving ash or smoke
(2)Y/N master transifguration(he can transform into anything or anyone without losing control or suffering any side effects, become intangible and create an invisiblity spell that can be detected by no means even Moody's eye can't), Alchemy(he acquires Nicholas Flamel knowledge via his journal), Darks Arts(smuggles books from Hogwarts and Dumstrang and learns all of it), Potions(creates werewolf remedy) and Charms
(3)Y/N Masters Space Magic. Creates a better forms of teleportation than apperation, like creating an invisible portal through which he can walk through(based on the concept of vanishing cabinet) and Space bending(in which instead of going to the place he can just pull the space towards him)
(4)Develops counter for killing curse
(5)He studies the magic revolving pheonix tears and cojuration, and creates the spell that can heal and regenerate regardless of the injury even his head if destroyed and keep him forever young