HP: War Game War Games

Watch as Arthur Black (It’s a coincidence) tries to adapt to his death and subsequent transmigration in the Potterverse...with a twist.
’So let me get this straight. I am in some twisted version of the Wizarding World, as a recently enslaved child sent to who-knows-where and happens to have a sizeable amount of magic. To get myself out of this shitstorm, I’ve been given an unfairly nerfed version of the gamer by some higher entity who might or might not be Cthulhu.’

TL;DR: Total War meets Harry Potter meets the Gamer= A very entertaining shitstorm.