>>717837072
>>717829506
Avada Kedavra is considered an Unforgiveable Curse because there is no usage to it other than murder.
To use the spell you need a lot of magical power and very high intent to wish death upon someone. In the 4th book Moody (Barty Crouch Jr.) invites the entire classroom to draw their wands and use the curse against him and he says he doubts he'll get so much as a nosebleed, because they're weak and they're children who won't have murderous intent.
>What about spells that make you explode, cut you to pieces or freeze you?
If you use an exploding spell to blow someone's head off, you'll still get a lifetime in Azkaban for murder, it's just the the usage of the spell itself isn't against the law because there are other usages for it.
You can use an exploding spell to blow off some rocks blocking a road, you can use a freezing spell on a lane to ice skate on it for fun, you can use a fire spell to light a bonefire, etc.
The mere usage of Avada Kedavra guarantees a lifetime in Azkaban (even if you missed or the spell was block by something) because the only way to even use it is if you fully intended to commit murder. It has no utility of any kind.
