In the humankind ofHarry Potter , that are many pieces of complicated magic , sometimes made even further convoluted byRowling ’s constant tinkering with the canyon . Some of these patch seem to only appear once or twice , in avail to the story , but are never fully fleshed out , leaving avid fans with many interrogation about the intricacy of the spellwork . One of the most rum examples of this is the Unforgivable Vow .

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The vow only appears in one scene throughout the books , and is mentioned again only a handful of times in the series and great franchise . Ultimately , piffling is known about the vow , and some of what is , just does n’t add up . To demonstrate , here are ten things about Unbreakable Vows that do n’t make any sense .

Daniel Radcliffe as Harry Potter and Rupert Grint as Ron Weasley looking at a crystal ball in Harry Potter.

The Vow Is Not An Unforgivable Curse

The Unbreakable Vow is a musical composition of conjuration that touch the lifespan of the vower permanently , culminating in a death if it is not satisfy , and in all probability very little well if it is . But , despite its power , it is not classified by the Ministry of Magicas an Unforgivable Curse .

While it does n’t defeat the vower on impact , like Avada Kedavra , it both invokes and promises deathandremoves the power of the vower to make certain choices , both of which are things inexcusable do . Despite these qualities , it is not see as an Unforgivable , which seems a confusing option .

The Vow Is Not Dark Magic

By a exchangeable token , the vow is never overtly classify as a cuss or dark magic , it is simply bear on to as " a vow . " While other curse that do much less are termed " cuss , " this spell looks like more of a ritual than any other kind of magic .

Though it is rightful that the Unbreakable Vow want spoken consent by the user , it seems likely that this consent tends to be given in times of high-pitched duress , risk , or emotion , making it very dubious consent at well . Perhaps the legerdemain wo n’t work if there is no true consent , but whether that ’s required by the vow is n’t made clean in the serial .

A Child Could Cast It

One of the only instances where the Unbreakable Vow is discussed appears when Ron call back a remembering from his youth to Harry . In it , he says that when he was five , he and   his more or less erstwhile brother tried to cast off the spell . The spell , of course , was never cast , but it appears that both Ron , and his sire , who stopped the magic with much anger , believed that it mayhap could have been .

Such an vivid spell does not seem like it should be able to be ramble by children so unseasoned , particularly since throughout the serial , readers see Ron and Harry struggling to cast advance magic .

Voiding The Vow Is Possible But Unclear

The Unbreakable Vow also appears inFantastic Beasts and Where to Find Them , where an representative of the spell becoming void really go on . This brings up many interrogation   around the destiny required for the spell to lose its power , but answers are never give . InFantastic Beasts , the   vow revolves around the killing of a certain person , but becomes void because the individual is already dead .

But this fails to clarify if the go became void at the point at which its object was fulfill , or whether it was at the point where the vower became mindful the objective had already been satisfy . If the vower never found out the vow had already been accomplish would the spell still be in mightiness ?   It is never made manifest .

The Vow Leaves Marks, But Only Sometimes

InFantastic Beasts , Newt and Tina watch an Unbreakable Vow has been mould because of scars will over by the magic , but in otherHarry Pottercanon , there is no mention of the vow leave any target . In fact , it seems like if Snape and Narcissa , the only active casters ever see by fans , both abruptly had new vow - related scars on their wrist , this would have almost certainly piqued the suspicion of Lord Voldemort .

Of course , it is mayhap magic could be used to hide these marks , but then why would n’t all wiz hide them ? There seems to be an inconsistency in the tale when it comes to the effects of the vow .

Lord Voldemort Doesn’t Use It

This vow seems like exactly the kind of magicLord Voldemortwould thrive on , and yet the Dark Lord never seems to make use of it . buff have consideredthat Voldemort could have made his followers vow to never lead astray him , make them to drop stagnant if they ever did .

While this might not turn back all betrayals fully , it would definitely palliate follow - through by contrary Death Eaters , and would make a built in punishment , one way or another .   There seems to be no canonical reason for Voldemort not to make enjoyment of the vow , and yet he never does , a perplexing choice .

It Is Unclear If The Vow Ever Expires

Some vow are very finite , for instance , vowing to kill another somebody , but others , even in the couple of canyon example show , are much more diffuse . InThe Half - Blood Prince , Severus Snapeswears to protect Draco Malfoy from damage to the best of his ability , in a specific , separate , part of the vow from his other promises .

A promise like this seems very open end , and whether or not Snape was theorise to protect Draco from harm for the quietus of his born living is unclear to readers . If such diffuse vows never die , as they seemingly do n’t , it seems very excessive for anyone to ever consort to them , and yet Snape does .

There Are No Consequences To Requesting A Vow

While the vower of an Unforgivable Vow takes on a massive consequence should they fail to accomplish their intelligence , the somebody expect for such a extortionate promise apparently suffers no consequences . While this could be all potential , it does n’t seem to make much sense .

Other brawny spells require much from the caster , and it is the mortal doing the request , who is really the benefactive role of the conjuration , after all . With no consequences for asking , and no reward for fulfilment , it does n’t seem to make sense for anyone to   engage in   an Unbreakable Vow .

A Third Party Is Required To Cast The Vow

The vow is the only piece of thaumaturgy which seems to require a third party . All other magic unveil in theHarry Potteruniverse , including the vow ’s closest relative , the blood pact , only demand people internal to the magic to work . However , when it come to the vow , neither   participant seems to be able to cast the spell themselves .

There is no explanation given as to why , of all legerdemain , the vow works so differently , and why neither individual involved in the tour can be the castor , but it does seem to be a foreign outlier in the canon .

People Use The Vow To Propose

While this lack of sense comes from the fan versus the series , it makes utterly no sense thatcouples are using the Unbreakable Vow as a part of their matrimony proposals .

The vow is not a romantic piece of illusion , and is instead very grey , speaking of decease , not life . Asking one ’s collaborator to commit to a life togetheror elseis believably not what most people have in judgment . Using the Unbreakable Vow to propose decidedly is not a reasonable option by any stretchability of the imaginativeness !

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