great series so far. The author introduces a decent OC who's naturally quirky (coming from a different universe and all) without making him overpowered. It's a hilarious deconstruction of both D&D and Harry Potter because the OC is fully aware that he's a D&D character with stat points and everything, and he's trying to impose his own universe's mechanics on the Harry Potter universe.
even if you're not a fan of D&D, the concepts are presented very smoothly in the narrative without glaring infodumps. great work so far.