Pokemon Mystery Dungeon, but make it medieval!
These are some PMD OCs I made recently for a medieval setting. It takes place in a middle-age setting where, following a mysterious meteor strike that wipes out humankind (it’s the meteor holding the original dragon that, in the games, splits into Reshiram/Zekrom/Kyurem! It does not split in this story).
Following the strike, Infinity Energy (the seemingly endless supply of “magic” that allows Pokemon to use their elemental abilities, including moves) fully vanishes, leaving Pokemon powerless, ordinary, and at the whims of their own hands and feet.
Many Pokemon go totally extinct as a result of this (many ghost types), some species survive but are worse off, and some are more or less unaffected (normal types). Pokemon can no longer use moves.
Pokemon battles are just fights with swords.
Societies are built upon the ruins of human kingdoms. The original Legendary Dragon, which represents Rationality (the balance between truth and ideals), is worshipped as a monotheistic deity of Pokemon.