Wands don't generate mana / magical energy. Wizards do. The wands are just efficient at chanelling it in a single beam. So if you use multiple wands together, you sacrifice staying power for firepower. Which means if you miss, you'll take longer to recharge, and meanwhile you are a sitting duck.

[–] Khrux@ttrpg.network 3 points 10 months ago (1 children)

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.

[–] emergencyfood@sh.itjust.works 1 points 10 months ago

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.