A human beastmaster whose spellcasting focus was a tiny awakened shrub (which was slightly on fire) and had a flying snake pet.
He was a Pokemon trainer. “Cindertwig, use your Thorn Whip! Now, Create Bonfire!” “Flython, do a Poison Fang attack!”
We only had one very short combat for the 1 shot.
This was the DM when I intentionally nestled myself inside the shambling mound