417
Magic rule
(lemmy.world)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
One thing I don't really ever coming across in the harry potter books were people being exhausted by powerful spells, perhaps I just can't remember a case where that happens.
It's always portrayed that you need a base magical ability and then from then all it's all knowhow.
Hmm you're right. But the hours-long duel Dumbledore had with Grindelwald is mentioned as something only he could do. So it might be that magical energy is limited, but you'd need to be casting spells for more than an hour or so for it to start having an effect.