- Location
- USA
There's Magical Power which grows through rigorous practice and repetition of casting, but there is no such statistic as 'magical stamina.' I have no idea where you all came up with that, I don't recall mentioning anything like it.
They mean magical stamina in the sense that is there a finite amount of magic within a wizard/witch that is used up when casting spells and after particularly extensive use a wizard/witch can run out of magic until they are able to regenerate some more. See magic bars/points in a videogame as an example.