The two spells should have the same legal status because they have the same outcomes.
I disagree. You could, potentially, achieve the same end result with either in some cases, but their method of action is different. Imperius directly subverts the will of the victim - who is aware it's happening - and imposes that of the caster, enabling him or her to direct the victim like a puppet. Confundus is more like the popular idea of post-hypnotic suggestion, a kind of magical trickery. Severus implanted an idea that Mundungus should suggest a certain plan of action, but he did not control his steps, speech, etc. as he would have done with Imperius.
If a spell has at least one legitimate use it should not be made categorically illegal.
I'm picturing a kind of "drug scheduling" for spells...
What waste of power? Potterverse magic sometimes requires effort to master, but once a spell is mastered it requires little to no effort.
In the case of Avada Kedavra specifically, Barty!Moody says "Avada Kedavra’s a curse that needs a powerful bit of magic behind it – you could all get your wands out now and point them at me and say the words, and I doubt I’d get so much as a nose-bleed." I don't think "waste" is the right word, though; Potterverse wizards don't have a "mana pool" or similar kind of limitation, and Barty seems to be talking about overall development of magical strength as a wizard matures.
We see the spell used certainly 2 times, and very likely a third.
Certainly 3 times and possibly a fourth, actually; don't forget Harry's use on the Inferi in the cave.
I disagree. You could, potentially, achieve the same end result with either in some cases, but their method of action is different. Imperius directly subverts the will of the victim - who is aware it's happening - and imposes that of the caster, enabling him or her to direct the victim like a puppet. Confundus is more like the popular idea of post-hypnotic suggestion, a kind of magical trickery. Severus implanted an idea that Mundungus should suggest a certain plan of action, but he did not control his steps, speech, etc. as he would have done with Imperius.
If a spell has at least one legitimate use it should not be made categorically illegal.
I'm picturing a kind of "drug scheduling" for spells...
What waste of power? Potterverse magic sometimes requires effort to master, but once a spell is mastered it requires little to no effort.
In the case of Avada Kedavra specifically, Barty!Moody says "Avada Kedavra’s a curse that needs a powerful bit of magic behind it – you could all get your wands out now and point them at me and say the words, and I doubt I’d get so much as a nose-bleed." I don't think "waste" is the right word, though; Potterverse wizards don't have a "mana pool" or similar kind of limitation, and Barty seems to be talking about overall development of magical strength as a wizard matures.
We see the spell used certainly 2 times, and very likely a third.
Certainly 3 times and possibly a fourth, actually; don't forget Harry's use on the Inferi in the cave.